guy problems

there’s this guy that i have been talking to since august. i liked him last year for a while, is roped and then we started talking. we aren’t officially dating yet, because for some reason that doesn’t feel right to me. we are basically dating tho, like nothing would really change in our relationship if we did date. lately i have been wondering why i feel certain ways. the only things we ever text about are either sexual or us fighting lately. i feel a bit petty sometimes but he just frustrates me about certain things, like he doesn’t talk to me at school. otherwise he is so incredibly nice to me, like he always reassures me and is there for me. i’m starting to wonder if i find him all that attractive anymore, like he’s not ugly but i don’t look at him and like just stare at him anymore like i used to. idk what’s wrong with me!!!