[JustAskJulie]

As others have already said. It's up to each couple to make other couples aware of their rules. In this case if it wasn't ok for him to watch your webcam without his wife there with him then it was up to him to inform you of that.

At the same time tho I can understand why the other wife would take it the way that she did. If you haven't talked to her much anyway she doesn't know you so it's easy for her to look at you and see. "This woman that I don't know is talking to my husband when she knows that I'm not around" which can easily equate to "This woman is up to something and hitting on my husband".

I would imagine that coming out of this experience, if I were you, that I would never repeat the same thing and never attempt to talk to the opposite sex partner unless his wife were there with him or had already made it clear to me that it was ok.

It's easy to say that the other couple is responsible for their own rules and making their rules known to those they are interested in, but it doesn't always happen that way and too often we find out about another couple's rules only when we are involved in breaking them.