Look, I understand your point but personally I think this is pretty good and realistic, in a way. It is true that They interacted less than Vanitas and Noe, in a sense, but what they went through was pretty deep too.
Plus, in reality, sometimes it happens that people fall in love with each other after they just met. I can tell you that the last year I went to the marriage of a friend of mine. He met his wife 4 years ago and they fell for each other after only two times they met and talked. They had been in a relationship for 4 years and then they married. Now she's pregnant with their first baby.
Who says that love needs so many interactions? Sometimes even simply their eyes, a word they says can it your heart and win you ever. ヾ(❀╹◡╹)ﾉ~
Isn’t this romance thingy kinda forced? I mean, they barely interacted with each other and now they are in love (????). Just bc the mangaka is one of my favorites I’m going to stick to the idea that the reason behind that development is something better (one of them dying. That would be really angsty and great to see)
Anyway, the Vincent and Gilbert thing breaks my heart every time it’s mentioned.
Also, is this manga romance tagged? Bc almost every girl character in here has a crush whatsoever.