Joh I am happy to answer this but please @milord no moral posturing. I know my aunt and many others are exhausted by it. I come to the forum to talk with people who also wear belts and to talk openly about it as there aren't many places to do that. Please don't take this the wrong way, but nobody who comes here wants to be lectured.
I have been dating my BF for about a year and a half. Obviously he knows about the belt. At the beginning he was fascinated about it and then, like me, frustrated because of it. We do go out and do the same things other people do on dates, like movies, dinner, hanging out, etc. but at the end of the night we just don't do things most other couples do. I try to keep him satisfied the best I can, but not being able to have sex is hard for him, and me too sometimes but I have learned to deal with it. When he is away at school on the East Coast so it is not so hard but when he comes back home it is tougher.
Yes I tried fighting fighting the belt at the beginning, but that didn't work. Eventually though I accepted it and even though it sucks to admit this, I was glad it was there to keep me from doing things I shouldn't be doing as i know I would regret them.