My boyfriend and I have been dating for about 4 months now. When we first started dating we had a great sex life. Occasionally, if he was really drunk he would take longer than usual to have an orgasm, but it wasn't an issue.
After dating exclusively, we both were tested for stds and then, since I am on the pill, stopped using condoms. As you can imagine, without condoms he never had any difficulty orgasming, even after a few drinks, or if we had already had sex earlier that day.
However, about week and a half ago, we were having sex after going out to a show and having a few drinks and he was unable to orgasm, he was still hard, but even after trying EVERYTHING, was simply unable to finish. I chalked it up to being tipsy and tired and we fell asleep. However, since then, he has had the same problem. We have had sex while completely sober over ten times since then, and he is unable to cum. Even if he stops having sex with me and tries masturbation, he is unable to achieve orgasm, although he says that he is able to so so when masturbating by himself.
He claims that this has never happened to him before, and says he is just really tired because he is going through some stress at his work. However, I can't help but feeling really insecure, especially if he is able to get off by himself but not with me.
When I first started dating him, he had recently broken up with his ex-girlfriend. One of the reasons he said he broke up with her was that the sex was bad. I am now worried that he stops being able to have orgasms after dating a woman for a while? Is this normal? Is there anything I can do to help?