No more MC while she is in an active affair and wants a D. Total waste of money. Nothing serious? Laughable, its been going on for 2 years at least. Let her know that you will give her an amicable D but you want to keep the house. That is where the children will feel at home. You will be fair and buy her out.
My W wanted the house, but I insisted that I keep it. I used the guilt she was feeling against and and got to keep it. My son never wants to go to her house because it is not home to him.