I agree about your finances. Think of this as a business transaction, try and remove the emotion. You have to protect yourself financially.
Let me share an example. In Nov 2007, when H and OW 'reunited', I was screaming/begging for him to move out. I even swore I would sign something that said he could have half the house, or even all of it, if he would just leave. He refused and THANK GOD! Now, I see, I was willing to throw everything away to be removed from the pain. Of course. But take my past 'almost' mistake and try to learn from it. Don't act from your heart when it comes to 'business'.