Does my boyfriend still like me ? PLEASE HELP IM GOING INSANE?

Soo im 13 and hes 16. and we live in florida. we've been dating for like a month and a half and before that we talked for like 3monnths. in the beginning he was the best guy ever, he always talked to me he was so sweet and amazing. he told me all this stuff, like he could see us being together forever. that he loved me alot. that he would never break up with me or hurt me. and then he went to his dads house and stayed there for like three weeks. andhe like would barely talk to me, claiming how he was busy. and then i started noticing that he wouldnt repply to me but he would be on facebook on his phone which means he was ignoring my texts, and sometimes he would be like i'lll text you in the morning and he would never text me. then one night i got all pissy and i was like this isnt working out. but then i decided i didnt want to break up because i really loved him, so we decided to take a break or whatever the **** that means. like where we would still talk and everything would be the same but the word relationship wouldnt be there. but he still would like never text me so i sent him some letter like ; dear brody, you dont talk to me or put forth any effort to make me a part of your life so obviously you dont want me to be i dont think we should talk anymore. from, kristin. and then he was kaay cool were over. and then the next day at night he called me saying how he loved me and he was just in a bad mood and he wanted me back and yeaa. and now hes back at his house and he always say were gunna hang out but then when the day comes be backs out claiming to be 'busy'. he never will hang out wwith me but hes constantly with his friends. he barely ever replies to me but he goes on facebook on his phone. he will be like i promise to call you but then he wont call. and when i tell him how he never pays attention to me he gets all pissed. and then like two nights ago he called me and was all telling me how he loved me and he was gunna put forth more effort into our relationship. but then yesterday he texted me for like two seconds and then didnt reply he promised he would call me that night but then never did. then last night aat like one i was like im really getting sick of this **** . and he was like whyy? and i was like as usual you didnt call me or text me as usual. and then he was like it was my brothers birthday ****, and i was like okaay and he didnt reply. this morning i texted him hi. no reply. i love him so much but i feel so alone. i dont get it why doesnt he talk to me, does he still like me ? why has he changed. i need advice. and i dont wanna leave him because i feel like hes the only one for me. and if he didnt like me then why did he come back? I NEED HELP WHY IS HE DOING THIS