Nothing like a broken heart to bleed ink

Are you sure about that, though?

It's true a character's sociopathy will not be openly discussed or addressed in a kids show, the same way it doesn't outright mention the several issues Adrien's developing as a side effect of his father's neglecting parenting. But those are things that can be sensed, and that's when fans who enjoy analyses, such as myself, step in to help.

Leaving aside that I find your accusation of me spreading false information uncalled for, I feel obliged to tell you, in the most respectful way possible, that this is an opinion shared by many and backed by many others through throughout observation.

There is one particular post that explores the possibility of Lila being a sociopath in depth, however, I won't share it nor tag its origins because I don't want to put its OP in a difficult position. But I assure you, if you just type in the search bar something like "ML Lila is a sociopath", it should appear.

With your permission, I'm going to explain why I agree Lila Rossi is indeed a sociopath. This is an analysis on a character, so I won't tag it as hate, please, forgive me if it does look like it at any moment.

The first thing that should be addressed is Lila's knack for lying; very common in sociopaths.

Ever since Volpina, the ML team has made it clear that Lila's most distinctive trait is her compulsive lying. Her possible sociopathy is heavily hinted on this; in every single episode she's been in, she's lied about her past: 

If that weren't enough, not only does Lila lie with every breath, but she fiercely defends each lie. Proof of this are her reactions whenever one of her lies has been exposed or she meets someone who's aware of her tendencies.

In Volpina, after Ladybug exposed her, her second highest priority besides introducing her alter ego and trying to get rid of Ladybug was going to Adrien as her akumatised self to convince him she wasn't lying.

Then, in Chameleon, she covered up the lie about her wrist saying she'd only caught the napkin because it could've hurt Max, and later, when no one who doesn't know the truth was around to force her to act friendly, she coldly refused Adrien's request of her being more honest and furiously exclaimed the liar was Ladybug, not her. 

And before it's pointed out, she only calmly dismissed Marinette's attempt at exposing her with another lie in Catalyst because, as I implied before, there were too many people present to let her façade drop.

Not to mention the great lengths she goes to to make her lies more believable or avoid getting caught in said lie. In her debut, it was the necklace she bought to convince Adrien of her false superhero heritage. In Catalyst, she took the phone from her mother to prevent her from finding out the truth and talk with Mr. Damocles, as well as claiming he was akumatised too. In Oni-chan, she used every single piece of information Adrien had shared in the car to make her lies convincing enough to be allowed inside the mansion.

Another trait shared by sociopaths that Lila has demonstrated as well is her incapability to acknowledge her own faults, something that can be linked to her being immature.

This particular trait was shown again in Volpina, Catalyst and Chameleon: 

Another thing linked to immaturity and sociopathy is not learning from one's mistakes, which, considering Lila keeps getting akumatised (now willingly), lying with every breath and has made no attempt at being more honest of a better person in general, I would honestly associate to her as well.

There's also the fact that sociopaths tend to display a violent behaviour; in Lila's case, although she keeps her mask around many people, whenever she has the chance to show her true colours, she takes advantage of it to the fullest. For starters, as Volpina, though they were actually illusions, she threatened Ladybug a total of three times with very aggressive scenarios; she "trapped" her under the threat of missiles, she pretended to blow down a building and to kidnap and endanger Adrien's life. As herself, though, she cornered Marinette in the bathroom and gave her an ultimatum, she tends to throw away her stuff whenever she's angry, she let her disdain towards  Kagami, Ladybug, Marinette, Chloé and Nino show and, as Chameleon she went and publicly tainted Adrien's reputation as well as proceed and furiously fight Ladybug.

Another aspect of Lila's character that backs this up is the way she reacts to minor offenses; again, Chameleon is the perfect example for this type of behaviour; especially the way she tries to get even from Adrien as Chameleon when the most harm he's done is nicely requesting her to stop lying, something he's in his right to do since Lila's the one trying to become a part of his life, not the other way around.

I also want to take the opportunity to point out something that I've discussed several times before; Lila declared war at Marinette even when she hadn't actually picked a side herself. Just by watching the last minutes of the episode it's easy to notice there's nothing that could be taken as a declaration of war from Marinette's part, she even let Lila's slip up about which one of her ears had the tinnitus slide and didn't interact with her again until the very last minute; when Lila herself made her her arch-rival. So why does Lila hate her with a passion now when she was previously willing to give her a second chance? Easy, because she was jealous Adrien had chosen Marinette over her; again, a minor offense. Especially because it was Adrien's decision, not Marinette's doing.

On the other hand, there's the thing with Lila's belief of being better than everyone else. She clearly says, when comparing Marinette to the others, that she thinks they're dumb. Just like she thinks herself as the best option to become the one closest to Adrien; deeming Chloé of tacky, Marinette of being "a dummy" and even badmouthing Nino; when two of the three aforementioned teens hadn't done anything to her, they hadn't even doubted her claims (in Chloé's case, at least not until she talked about her secret formula to call Ladybug). This is something she also shows when akumatised, she considered Volpina to be the best hero of Paris (going as far as saying she was the only hero the city needed), when Gabriel was putting her persona down compared to Ladybug she reacted strongly (even if Volpina was, indeed, a bad copy of a superhero) and as Chameleon she kept on underestimating Ladybug.

Lila has a knack for isolating people, both personally and using other means to do so. She's done it herself when she went after Marinette when she was in the toilet (I won't disregard the possibility that she might've offered to go instead of Alya or any other classmate in an attempt to win her over as well), she always talks to Adrien when the two are alone, even going as far as looking for a place where it can be just the two of them (the library in Volpina, the locker room in Chameleon, which she used to lock him and get a kiss to transform, or his house in Oni-chan) and she talked to Chloé when only Sabrina was present, who, unfortunately, doesn't have that much of a presence.

And as for the other means, if you think about it that's exactly her goal regarding her issues with Marinette and Adrien; she wants to isolate Marinette to get rid of her, and thus, the only person capable of making her web of lies crumble, and she wants to isolate Adrien to have him all for herself. And on a side note, when she straight up isolates people she does so in a way that the other won't have a chance to escape; she becomes unpredictable.

Something else that should be discussed is her façade itself.

Many sociopaths are known for appearing caring, kind and generous; things Lila pretends to be to win people over, such as promising Nino she'd talk to Steven Spielberg/Besielberg about him, her role in the environmental conference that took place in the Kingdom of Achu or promising Marinette she would help her get closer to Adrien. All the which make her look like an exceptional role model to others, like Caline's amazement on her numerous "feats."

I'd also like to mention that Lila shares another similarity to your average sociopath; she knows how to read people and tells them what they want to hear; something she even admitted herself.

In her debut, she complimented Chat Noir and agreed to Ladybug's change of her plan to defeat Hawk Moth to reduce suspicions on her and make the super heroine look paranoid and jealous. In Chameleon she didn't hesitate to entertain her classmates with more stories about her travels, the celebrities she'd met or her friendship with Ladybug, just like she complimented them all as well for being so kind as to "remember her hearing problem", to bring her her food and the like. In Oni-chan, she even played, or at least tried to, this card with Gabriel, telling him everything he wanted to hear about Adrien's protection and his parenting.

One more thing that I honestly believe Lila possesses is a very aggressive and intimidating, yet cold and distant stare. If you look at her closely, it's easy to notice most of Lila's character is reflected on her eyes and eyebrows, after all, the eyes are the mirror of the soul. She actually has two different types of glare:

And, lastly but not least, sociopaths are known for guilt-tripping others.

Lila herself has done this while pretending injuries and diseases to get what she wanted from others; the seat next to Adrien, her food…, to make Marinette look bad about not wanting to move to the back, to manipulate Nino into convincing Adrien to study with her, etc.

Lastly, I would like to point out that her possible sociopathy is not what makes her a villain; that's her ability to tell from right or wrong and, still, ignoring the right path. And I must let you know, anon, that I never spread false information. The one time I referred to her as a sociopath that I can think of, I was actually explaining another anon who'd seen that term being used to describe her in Wikipedia that I'd seen it myself on TV Tropes. And just like that, I wasn't the first to think of her as such, I only read some very good, in depth analyses that presented that option and found myself agreeing with them. That's all I did.

May I give you a piece of advice? Try voicing your concerns a bit more nicely, something like "I don't see why Lila is a sociopath. Could you please share your views on the matter?" It'll save you a lot of trouble :)