How can I change who I am attracted too?

I'm a 23 year old male with a thin body type and have always been attracted to thin girls. However, within the last year I developed crushes on two chubby girls, but that's as far as it has gone so far.I like thin girls because of the shapes of their butts honestly. I really want to fall hard for a bigger girl, because a lot of them like me for some reason. A lot of them are very nice and have really good personalities sometimes better than the thinner girls I've known. Oh and having bigger breasts is not a bad either lol. I haven't had much luck with thinner girls and they have sort of been a pain to me.. A lot of them are stuck up and seem untouchable sometimes (not all.) It just seems I would have better luck with the bigger girls. Could I become fully attracted to them?