Argh. I'm in an emotional rollercoaster about this storyline in which Buck gets jealous when Eddie gets close to Tommy.
I mean, on one hand, it's hilarious that it's Tommy, Eddie's male friend, and not Marisol, Eddie's girlfriend, who ignites this jealousy in Buck.
Because doesn't it kinda hint that Buck has (maybe sub-consciously) internalized that Mr. "Imagine Jello with me" Diaz truly is so bad with women...
that any relationship he has with a woman can be happily ignored, as it clearly poses no threat to Eddie's and Buck's relationship.
On the other hand, the fact that it's Tommy, not Eddie's girlfriend, that sparks this jealousy... ?
It wrecks me because it also is pretty damn heart-breaking and sad if you look at it another way!!
Maybe this jealousy, sparked by a male friend, tells another story of Buck's thought progress.
Maybe it tells us a tale of Buck getting burned before, and learning from that, and then, to avoid further hurt, rethinking his role in Eddie's life, and clinging to what he thinks is safe and certain.
After all, there was a time when Buck, Eddie and Chris did so much together, all the time. They were close, Buck was absolutely parenting, Buck felt like he really belonged. They were a family.
And then all of a sudden, it was taken away from him!!
Imagine how deeply that would hurt.
This severed connection is btw, pretty heavily implied/canon, I think - we pretty much know, I'd argue, that when Eddie started dating Ana, there was a time when Buck did not get to see Chris much.
In the episode in which Ana and Chris visit Eddie at the firestation in 5x02...
Buck is overjoyed to see Chris, he gives him a really fierce hug, immediately asking Chris "How are you?"
I really get the impression that they haven't seen in a while.
It's supported by the way Eddie watches and grins like it's such a thrill for him, to see Buck and Chris meet - that's not really something he'd do if he saw them interact all the time, is it?
What Eddie says after he forgets to introduce Ana (too spellbound by Buck and Chris to remember her existence, basically) and has a panic attack - further supports this faltering connection.
Eddie runs off under the pretense of needing to put the salads Ana brought to the fridge.As he's making his escape, in panic, he mutters
"I don't want these things to wilt."
It's supposed to be an explanation - must save the salads from wilting! - but combined with the way he says that soon after he's just witnessed Buck and Chris meet, and the subtext telling us that it's been a while...
Eddie has just been reminded of how well the Diaz-Buckley family fits together,
and does not want those bonds to wilt - and he's realising that they have been, due to Ana pretty much taking over Buck's former parental duties. (And hey, then Eddie pretty promptly dumps Ana.)
But that doesn't erase or entirely fix what has already happened.
Buck has learned that he is replacable, that his status in the Diaz family is not guaranteed. He can be family one day, and then all of a sudden, shut out.
Learning that he's written in Eddie's will would not really cheer him up much, either. It's not security to know that he can be a parent, truly, without question - if Eddie is dead.
And then that talk he has with Eddie about a ready-made family. It really makes it clear that Buck is hurt. He tries to hide it, but it's so visible when Eddie talks becoming a ready-made family, and Eddie not knowing if he's ready for that.
Supposedly Eddie is talking about his ready-made family with Ana... But he's looking at Buck. He says "we became a ready-made family". And looks Buck in the eyes.
They aren't total idiots, they would have realised how much this whole unit of Chris+Eddie+Buck spending time together really imitates other families.
So there's no way that they don't realise that on some really repressed, strange level, this talk is about them, being a family.
Also, why would Buck look so hurt and sad, why would he look down, if he was fine with the way things have been? If Eddie was really talking about just Ana, and Buck had never felt like he was family, why would that talk about a ready-made family make him feel so uncomfortable?
Buck is hurt because he knows he was family, and he knows he was replaced, and then Eddie even kinda admits it.
And Eddie also implies that he's not ready for that.
That's really not an invite to get invested again. Nope, it's a life lesson for Buck:
Do not take these family interactions for granted. Who knows when Eddie is done with them, and you find yourself outside in the cold again!
So Buck deals with that by clinging to what is safe. What is secure. What he thinks he can have, and keep.
He decides that even if his role as a co-parent is uncertain, and may end up in the bin whenever... His role as a best friend? That's guaranteed.
So he does not feel threatened by Eddie's girlfriends. He understands now what space Eddie's partners may take in Eddie's and Christopher's life,
but that's fine because Buck can set up another spot for himself. It's maybe not ideal, not what he'd choose, but it's a spot nevertheless!
After all, Eddie finding another girlfriend, or even a wife, another co-parent... Does not remove Eddie's need for a best friend. Even married people crave friendships! So that role is available, that Buck can do, holding onto that won't get him burned!
And then this fucker Tommy steps into the picture, and Eddie bonds with him.
Buck gets nervous. What if he's wrong? What if even the friendship, the best friend status, is something that can be suddenly ripped away from him?
So Tommy is now competition, a threat, someone who could steal the one position by Eddie's side that Buck thought he had, for certain, for good.
Buck is worried. Jealous. Angry. Scared.
Anyway! See now, why this storyline is absolutely destroying me?!