I think one of the funniest things to see in Star Wars fandom is this idea that Anakin and Padme would actually genuinely be good for each other and be a happy, healthy couple if only Anakin didn't go dark or if only Palpatine hadn't manipulated them or something along those lines.
And I'm over here like "based on what common values and interests?"
The things they share the most in common are the things that make them TOXIC, it's the very traits they share that lead them to their shared doom and destruction. Their shared selfishness, greed, and ambition is what allows them to throw aside their ideals in order to be together no matter the cost. Their shared willingness to ignore reality in favor of what they WANT to believe is what allows their situation to continue to deteriorate.
Padme fights for democracy, and Anakin believes in dictatorships.
Padme wants a large family because she has fond memories of her childhood with her own family, and Anakin wants one person whose life revolves around him and him alone.
Padme (usually) believes in mercy and justice, and Anakin believes in might makes right.
What about them would make anyone think they'd actually ever be a functional couple when the only stuff they have in common are the lies they tell themselves about each other?
They would be terrible parents. Anakin would resent the twins for taking attention away from him and Padme would be frustrated that they aren't perfectly behaved at all times. And the twins, being Force-sensitive, would pick up on all those negative feelings and internalize them. The results would be... unpleasant, in a variety of possible directions.
Personally, I think Anakin would still Fall. Acting as if it could ONLY be possible in that one specific instance shows a fundamental misunderstanding of the character. I just hope the kids aren't around when he finally loses his temper for good. I would hope Padme might scrape together enough common sense to get them out of there before/when it happens, but she doesn't have the best track record on that score.