If your name is on the lease - get a copy. That's what's important no matter what she tells any lawyer or realtor. If your name is there don't move - you have every legal right to be there, period. Do you own this house? If so, she can't sell it without your consent. Can you make the mortgage payments on your own?
Yiou have to remember she is not your friend right now. She is using you, lying to you, doing everything in her power to get her way, that is have sex with another man against your marriage vows and your wishes.
You don't have to be cold, just say no thanks she is playing nice - giving you plates of food etc... That's all. I struggle with that too being cold or just being distant but polite.
You can do this - make her respect you. Be the best father you can be!
