"Why would i want to help her 'punish' the rest of my family. I don't want to be her accomplice so i refuse to take the fruits home."
I don't get it. How is that "punishing" your family? She wanted to do something nice. You don't have to do it, but don't think it's punishing them. Deep down she could feel sorry even if she doesn't show it to you.
"I validated MIL's feelings and at the same time had to bite my own tongue. "
Why? You're not together any more, you should have told her things from your point of view. But let's be very clear. You weren't the best H in the world. So don't start talking as if you were a saint.
M-43 W-40 2D - 9 and 5
Emotion, yet peace. Ignorance, yet knowledge. Passion, yet serenity. Chaos, yet harmony. Death, yet a new life.