Originally Posted by citygirl
I think it is because they crossed the line in my book. Because they were deceitful and hiding their tryst, I think the poly card they are using is just an excuse for their behavior.
Keep going the way you are going and don't let anyone guilt-trip you. You were the one who was deceived. You have every right to feel hurt and jealous. You are correct in describing this as a "tryst" and you should have no bad feelings about "calling them out on the rules of poly".
I'm going to stop there because this is such a standard textbook case of cheating, and there are other people here who I'm sure will elaborate on the nuances of this particular situation.
As Fidelia would say, "Stay strong, sister woman".