I feel terrible about my breakup with my Bf yesterday ?

I broke up with my Bf yesterday n I feel terrible I did it for what I thought was rite.he says he still wants to be wit me he loves me n he thinks we need a break. He's changed so much!!! Today n school was weird n He actin like he doesn't care..I'm so depressed rite now n don't wanna cry n class.I feel so alone.I'm missin him like crazy. I'm just getting to eighth period n he gave me hug told me he liked my shoes asked me what was wrong n did I eat .like hmmm idk if he fronting n front of his friends or what but he making me think he never cared. I texted him a little earlier rite before lunch ..n texted back but now that I text him during lunch n ask if he wants to chill second Half with me or just meet me at the locker after 8th period ..he never replied ..he told me we had a sub cuz he has the same class as me for seventh period n I got the class eighth ...so I know damn well he could of texted me back. Since he's changed he even liked a girls picture on facebook .he never did anything that has to do with a female n just that tiny like comment got to me.I'm like all sad frustrated stressed n sad all at once.I mean I've Ben trying to talk to him all day but he seems to be refusing ..is my Bf careless at this point or is he fronting ??