Gay relationship?

Hi I�m a 25 year old guy from Croatia, I�m in a great relationship with my bf an I love him more than anything. In the last few months thou we are having problems since our ual life isn�t that great. He just doesn�t want to have any kind of . I tried to talk to him and he sais that he just isn�t in the mood and that he is stressed. I�m pretty sure he doesn�t cheat on me. I�we tried allmost ewerything. First he said it was work, then he changed the job. Then there were some other things that could have bothered him but all got resolwed in his favor and still nothing happens. Please help what could be wrong with him (or me)?!?