I'm not sure that I wouldn't want to at least touch on dating/relationship history. I feel it gives better insight into the person to at least know something of his/her history. Personally, I'd want to know how long he's been single, if he'd ever had a long-term relationship and if so, how long he stayed in it. His reasons for getting out of a relationship, etc. This is the kind of information that lets me know his character, among other things about him.
really good advice. i totally agree that the promise of condom-free sex makes the conversation of testing a lot easier.