Should i stay with him?

Well, I've been dating my amazing boyfriend for almost 7 months now , and I've been happy ever since. i love him with all my heart, even if 7 months isn't very long. Well, lately hes been acting different, i know hes not cheating on me but the way he is with me is just.. different. all he does is want to make fun of me in a playfully way, and yet he knows it can get me irritated. We have summer vacation now, and hes moving to an apartment 4 blocks away from the apartment he has now and he claims he's stressed about, even though he's not the one paying the rent; his mother is. He's switching phone plans so i haven't gotten a stable number from him yet, so i wait all day on Facebook for him to get on and he only gets on for like 5 minutes every 2 days and acts so serious with me like he dosnt want to talk, or just to pass by and say he loves me. He's broken up with me only one time before and cried more then i did... yet when he wins me back its all back to normal like nothing ever happened? when we got back together all my friends didn't like the idea, and didn't want us together again, but we kept on dating. i'm probably not going to be able to see him this summer, and if i do maybe once or twice. im just worried that hes going to leave me because we have no time together and yet all i do is wait for him. I wanted him to come to school today for the last day, and he PROMISED he would but never came. i don't know where he is. i know hes not cheating, but i love him and would never have the heart to leave him. i don't want our relationship to end ; but sometimes i feel like its best... but the 2 weeks that we broke up were so much pain for me, i didn't even want to leave my room. do you think i should stay with him, or leave him, or what?