Orgasming

Okay, so my boyfriend and I have great sex. I'm good at what I do, and he's good at making me feel sexy & feel so good. But he hasn't ever been able to get me off. He almost has twice. But I was wondering if there was a way that I could get myself off while having sex with him so that he wouldn't feel like he's no good? Because that's a big let down for him that he can't do that for me. I just tell him that it's difficult thing to do, and I don't really worry about it too much during our sex because I just want him to feel pleasure. Of course I do too, I just don't get off with it. But now I'm staring to miss the feeling and the rush it gives me when I do have an orgasm. Does anyone else have this issue?