Feeling "it"

Jozell

When I'm having sex sometimes with my boyfriend I sometimes all of a sudden just stop feeling the sensations completely. He on the other hand is having a awesome time, which I try to use to turn me on again but fail.

How do you suggest I keep the feeling going or aid him to make me feel it? This is getting really annoying, it's not that he's not good sexually because he is it's that I get in my head about sometimes and then it feels like nothing. I've told him and I think he's hurt by it (it happened on our anniversary) because when I don't feel it I don't fake it.