That's how I felt with my ex. All the b/f's I had before him didn't want guys to look at what was theirs - but not Jack. Nope. He trusted me and didn't get jealous. It pissed me off!!! It felt like he wouldn't care if he lost me.
Girl, guys like these are enigmas. We'll never know why they do these things, unless they were taught to share through-out their life.

I, myself, rarely bring my girl to clubs, but, as a friend of guys who are like your b/f, it's not a question of jealousy at all and it has nothing to do with it. It's sad but most guys I know do what your guy is doing for the reason that having a sexy girl half-naked on the floor with you is kind of an ego-booster, a trophy you could say. It's like saying look at me, I'm with "something" you want, yuou envy me, etc. It's basically an ego thing. Well, that's my take on it as well as several other people I know.

I never was the jealous kind of guy, for whatever reason. My thinking is that if she ends up with someone else...good riddins! And this mindset paid big dividends in my dating scene and acted like a magnet or something. The more I didn't care, they more they did care. Funny how that works. I didn't care to dance, she wanted to so I told her to go out and dance it up. Sincerity and trust between us is what we have. She hasn't screwed up and neither have I. That's why it works for us. In my mind, some other guy was doing the job for me that I wanted no part of. She got to dance, I got laid when she came home...EVERYBODY WINS! It's not for the weak, though, and most guys couldn't have that kind of confidence in themselves and their honey.