Is he bored of me??? :(?

Me and my bf have being going out for over two year( on and off we broke up once) and these past few months weve started having quite alot., more than usual. He came down to my house last nyt and we sat and talked all was fine and then we were kissing. He then told me he didnt want to have with me, he was just not in the mood, Then he told me that he hadn't of being sure if he had wanted to come down that night because he wasn't in the mood to have . Do you think this is odd for a guy?????? It made me feel a bit uneasy. Do you tihnk he's bored of me and that all he ociates me with is now? Or am i just over reacting. He still phoned me today to see how i was etc. any answers appreciated, thanx :)