boyfriend and chat rooms..is it ok?

[Jstig]

So this is probably a stupid question, and I feel stupid asking it but whatever. I've been with my boyfriend for almost a year and a half. Our relationship is really good and both of us (as far as I can tell) are fully invested in it; I'm away at school most of the time and he makes the effort to come see me a lot, he brings me around his family, etc.

He's never cheated on a girlfriend (one of the first things he wanted me to be sure of being i've been cheated on so much and so has he). And I trust him for the most part...the problem is he loves women. Not that he would ever act on anything, but he constantly comments are girls that he finds attractive, which in a way I guess it's good that he doesn't just look behind my back, but I've let him know it bothers me but I guess it doesn't mean anything to him.

Anyway, he recently became a moderator for the Frostwire chat...he created his own room. He's in to technology and stuff so it is a hobby for him, but I'm afraid of who he's talking to on there. There's one girl who friended him on facebook and I know they've been talking because he told me how she was telling him about how rich her family was or whatever. And of course she looks like Barbie. Fortunately she lives in CA, so obviously nothing will happen but I still think there are things that you could talk about with someone which I would consider a form of cheating.

Maybe I'm just being paranoid and stupid, I dunno. But I guess it bothers me because I know how he is, and because what has happened to me so many times in the past. Should I bring up my concern to him? Or just let him go on with his "hobby?" And if I should bring it up, what should I say??