I have to  agree with undercovercrab....why would you pursue this, especially since he hasn't introduced you to his wife, when he had a chance?..

We get along great and I really do enjoy his company.  I don't want to jump to conclusions and assume that he is after anything more and blow him off, when he hasn't done or said anything inappropriate to me.  The only questionable thing that has happened is him not introducing me to his wife.  I worry that I am being a bit paranoid here...

Most women would consider this a problem if their husband was doing what this guy is..

If you want to know for sure then the next time you see him, ask him to invite his wife along and say you'd like to meet her. If he comes up with an excuse then I'd be pretty certain his intentions toward you are sketchy...

Married men should not be "friends" with single girls. YES, he wants some fun on the side!! He doesn't need more "friends." Find someone single to date. Couples should be friends with other couples, not single people they just happen to "meet.".

Good distraction frees us from emotional pain, bad distraction gives you a mouth full of whizz. ~~~ Guru Tugginmypudha..

Well that's a pretty judgmental post. Not everyone has to limit their friendships because not everyone has bad intentions. Maybe you couldn't handle it but lots of people can...

Sure. I wouldn't like my BF having a single girl friend he went to bars alone with. So I would not do it to him. I do not vacation with other single men, or go to parties, or other date-like scenarios either. I respect the feelings of my partner too much to pretend I'm still a single girl. I have girl friends for entertainment.

Good distraction frees us from emotional pain, bad distraction gives you a mouth full of whizz. ~~~ Guru Tugginmypudha..

Well that's you. I don't think two people need to recreate a "date-like scenario" in order to be friends though...