I'm not trying to be rude, but please don't pretend to be the civil one at the end of the relationship when you are the one who cheated on him. I think MOST people would have a few negative emotions regarding a cheating event, and justifiably so. I can't help but feel that you're using the bi/poly thing as an excuse, when you shouldn't be, as it just makes it look like this is a typical/to be expected bi/poly behavior when its not.

Honestly, I can see why your ex would say such bad things. I can see why he felt used. I think that if the worst he does is say a few mean things to you, then you're lucky this cheating episode ended as well as it did.

I'm not trying to be rude, rather I don't think its fair of you to tell us half the story in order to get support when you have not exactly been faithful in your relationship and cheating is what made your ex so mad.