Is my (f18) and my bfs (m19) relationship done for after he wanted to break up but changed his mind?

Me 'f18' and my bf 'm19' have had a great relationship, we were best friends for 5 months before we started dating 2 months ago, always close, always hanging out but we both have bad families that aren't very supportive. We both wanna change for the better and be there for each other but recently my boyfriend thought I didn't want to since I had mentioned I dislike people changing but I also stated in a "fake" way not in a genuine nice way. Anywho, he randomly decided it wasn't gonna work 3 days ago, I was hurt, we talked, I told him that wasn't true at all and how I meant it, he said sorry he didn't realize, started crying to me how he was sorry and just confused- we're young, I get it. now I'm just so hurt, I know I shouldn't be but it's months of telling me he'd never leave, we're meant to be, how we wanna change for the future, he loves me so much and boom he just wants to break up without even thinking of asking me how I meant it if he didn't know.

We're trying it again cus I love him but l'm just so hurt. I just can't believe he would actually do something like this especially so fast and then it's like l've personally already deleted memories and threw out stuff I can't get back cus yk I was hurt. I just don't know. Has anyone had something happen like this?! just feel hurt and wish we could go back.