Seriously?! Don't get me wrong, I feel for you. FYL for having a bad sex. But why would you complain about him asking you how it was? That's 100% the right thing to do on his part. He's genuinely interested and perhaps wants you to be happy and satisfied (him 'not doing anything' in the process might simply mean that he has less or even no experience relative to you). You can tell him he sucks and point at how he can get better, you can tell him it's ok but then dump him, whatever. But there's absolutely NOTHING wrong with him asking a question. If anything, he cares enough about your opinion and you to ask a sensitive question.

I hope you told him what you told us. I'm tired of this Feedback Culture we've become. Everything wants a rating and a comment without any indication that it means anything. But be careful what you wish for. If he is going to be more involved, his agenda might go to unexpected places, like in your butt.

Sometimes you have to do a lot of Mr Wrongs before you find Mr Right. Good luck!