I've been dating my boyfriend for over a year. We lost our virginity to each other. He's really sweet and tells me that he wants to spend the rest of his life with me and how one day he hopes he can make it happen. But lately I feel like all he wants is sex. I feel like the only reason he tells me these things is because he knows it makes me happy. We'll be laughing and having fun and whatever and things will end up getting heated between us and we have sex. Well, no sooner than 5 minutes after the sex is over he tells me he has to go because it's late or he has work tomorrow. Am I reading too much into this?