The last time I was with my boyfriend he wouldn't have sex with me. Even when I tried to initiate it he turned over onto his stomach so that I wouldn't be able to touch him. I'm so confused usually we have a really good sex life. It makes me feel hurt and unwanted and unloved. I asked him about it and he just said he was tired. I don't know what to believe. Please help

Chances are what he said. We're not just rampant sex machines that will pleasure you whenever you want. If we're tired or stress or whatnot it takes it's toll on our libido.

Is this a common occurrence? Or just this one time?

I seem to have the exact thing with my girlfriend. It hurts getting turned down for sex.