I Need Relationship Advice-

Hey I need help idk what to do, So im dating this guy  and we have been fighting for two months sraitght and iv'e been trying to fix it but nothings working . I've cried myself to sleep overthinking about it and I just dont get why we fight because we would fight for the smallest things i dont even start the fights its always him that does but he makes me look like im the bad guy and that im the problem and that its my fault but i know its not. We just had a fight today just because i didnt give the reaction he wanted when he was trying to make me mad. and before that we were in music class and there was no more seats next my bf so i decided to just sit next to my friends(They're girls btw) but then he got mad so when music class started i basically had no choice but to change my seat to sit next to him so he wouldn't get more mad at me. But that was pointless i guess cause he still got mad at me either way. I just cant have anything nice can I, I literally spent the whole day skipping classes so i wouldn't see him or have to deal with him or his friends. And it sucks cause he always says "You're gonna skip class like always" when I only skipped class once and that was because i WAS SICK like i got sick and didnt feel well but i didnt want to go to the nurse so i went to the bathroom to take some pills to make the pain to go away. I dont like my bf anymore i stopped liking him a month ago and I started to like someone else who just so happened to have a gf already and is best friends with my bf so i cant confesse to him but idc about that. I just wanna fix everything between me and my bf .but idk what to do i've tried everything i can but nothings working. can you guys help me please.