Re: What would you do ?
Well, to go a bit futher on another's post here, it's not your relationship. The man is dealing with it in a way that is comfortable for him and his girlfriend, so stop judging him. If he was really a friend of yours, act like it and support his decision. Trying to ridicule him in this way is pretty low for a supposed friend.
In my eyes, going to beat up another guy because he touched your woman is lame and juvenile. I think he is handling things in an adult way. I also think that the woman should have said something earlier, I have no idea why she kept quiet, it only makes me think she had something to hide, maybe she did encourage it and regretted it. But that is my opinion, he handled it as an adult handles things.