[TravlParty]

It sounds like you found an aggressive male (E) who is used to calling the shots, and his wife wasn't too happy about him taking your wife off without talking to either of you. The fact that she paid you no attention was not good either. Something's wrong with that situation.

Chalk it up to lesson learned and move on.

As for your wife's guilt, forgive her and talk about how she can avoid the aggressive male in the future. My wife is attracted to aggressive males (opposite of me), but would never go off with him without telling me first. She makes it very clear to anyone we're with that she never plays without me being in the room. So, stick to your rules and don't feel that you can't put on the brakes and say, "hold on, I need to let my partner know that we'd like to play."

Every experience teaches you something new. Talk about it and assure her that you understand she was overtaken by a jerk who had no concern for your feelings and/or rules.

Good luck with finding more pleasurable company in the future. There are some good people out there; you just have to be careful.