Favorite romance trope

I have to say this was hard to answer but after thinking about it long enough I think I truly really love the trope where despite all their differences the couple or duo are truly the only ones who fully understand each other from my favourite ship of all time kainess to my favourite duos in my favourite books aka Andrew and Neil from all for the game and Sansa and Sandor (although I do not ship these two despite the underlying romance in the book because of their age gap) from asoiaf to my now favourite bl no more Eurydice. I just love it so much I think it’s wonderful how even someone you start off despising can truly love you and all your flaws and try to understand them I’m not sure if there’s a name for it tho. I do also love a cynical x idealistic duo where the cynical one finds hope and where the idealist one knows the cynical one is better than they think they are