I think I have a lot of common sense, but often I ignore it.
So now there's officially an email string with me and the P Man's roommate. [Actually, he was at the club the night the P Man and I met, his roommate (and best friend) is hot. I'd link to a previous post about a conversation that the P Man and I had about his "hotness," but I can't get to it right now. Basically, it was him trying to convince me that I agreed with him that he was hot even though I told him he wasn't.]
The roommate asked me if I wanted to keep in touch. The first question that came to my mind was "why?" and of course, common sense tells me I should say no. It wouldn't be the best idea to keep in touch with him since I don't plan on keeping in touch with the P Man. If I told him this, it'd get back to the P Man, but I would rather let the P Man know of my plans directly instead of having him hear it from his best friend.
On the other hand, if P Man did not exist, I would keep in touch with the roommate.
Anyway, I also wonder if this is a trick or if there is an ulterior motive. Why would someone make friends with a friend's ex? It doesn't make sense to me and doesn't seem very loyal. Obviously, it'd get back to the P Man.