At first I was thinking that I have asked other guys what they like so that I could take that home to MY boyfriend, just to get some ideas. But then I read on and that is really inappropriate. Guys have talked that way to me before and I have flat out said "you make it really difficult to justify being friends with you" and leave it at that. If they continue the talk after that then I just quit talking to them. The only time I would ever see that as appropriate is if he were talking about things he likes about his gf or wife etc.... and the same for her. But just saying "this is what I look for in a man...." or vise versa...I would flip my lid. You have every right to be concerned. And even if it is jealousy....it sounds like you are handling it in a mature way instead of snooping and sneaking around to find something out. I would probably ask that she not talk to that guy anymore.