Idk what's going on I need advice

So I've been at my bfs house for a little over a week now and the past few days he just hasn't been acting the same...like he doesn't really talk to me much and he jut has that annoyed don't give a fuck kind of tone to his voice when I talk to him and he just doesn't kiss me much at all now nor hug me or do the cute random things like smack my ass or anything like he normally would do....and we haven't had sex in like a week which we don't have sex often because he does live with his family still because he can't afford an apartment but like idk what's going on anymore he says he's fine and stuff and he tells me he loves me and he promises he's not going anywhere and I have looked threw his phone even thou i hate doing it and there isn't anything suspicious on there and idk...the one night I was upset and was talking to him and crying and I told him how I was sorry I didn't make him happy and didn't do anything for him and he replied to me by saying nothing will ever make me happy and that no one can do anything for him...and like idk...I do so much for him...I do his clothes and give him back massages (which latley he won't let me give him any and idk why) and I take care of his fish and stuff when he's not around and if he need a anything I do it for him when he doesn't want too..and I just idk what a up with him latley.....