Send it to your lawyer. She can ask for whatever she wants.. (all the while knowing settlement guidelines). That doesn't mean she'll get it. Talk to your lawyer about the least hassle way to settle. Letting her feel she 'wins' a little helps you close it and get on with your life.
She can make it very expensive, but that is going to hurt your combined net assets.
Houses are assets of wood, brick and mortar. Home is where the heart is.