Dear VictimofLies, I'm so sorry you are going through this nightmare situation.
You do not owe this woman anything. Yes, people should be able to expect common decency from other people, but sadly that is not always the case. There are some people in this world who will lie, cheat and manipulate you for their own selfish reasons. Fortunately the world is also full of good people. Keep and find the good ones, and kick the rest to the curb. You deserve to be happy and surrounded by loving supportive people.
Her despicable behavior is NO fault of yours: she has simply shown you exactly who she is. You owe her nothing. Forgiveness can come when the time is right, and if you are angry at her, so be it. Know that anger is a normal and healthy reaction to what you are going through. Let your anger take its course, in a way that does not take over you - express it in healthy ways - scream into or punch a pillow, go for a long walk, etc. I believe in time your (possibly misdirected) anger can be redirected at your WH, but for now know it's ok to accept how it's expressing itself as part of what and how you're feeling at this moment.
One question (and forgive me if you already said so in your post) but are you presently in counseling? A good counselor or therapist can help you greatly with processing anger and the questions you have about it. I do agree with you that it would be a good thing to get in touch with your anger for WH and his role in this. If you are already in counseling, do bring this up to your counselor.
I have not read your profile so don't know the details of your situation and not sure how long you've been on this site, but have you looked at the articles in the Healing Library (upper left, yellow box)? If not I highly recommend reading the ones on Boundaries and Implementing the 180 (or re-reading them). These were so helpful to me, and I think highly relevant to your situation.
You are right: You cannot make WH be remorseful. He has to get there himself, and that's why clarifying your boundaries, setting them and then sticking to them as best as you can is vital. This is part of taking care of YOU, which needs to be first and foremost right now.
Please keep posting and asking questions, and know you are not alone in this!
[This message edited by burninghouse at 8:29 PM, April 18th (Wednesday)]