Absolutely!
Don't move out of your house. It's your house. You can share it as long as she is willing to work (seriously) on the relationship. There are many compromises that you could make to stay together, but DON'T, DON'T, DON'T let her walk all over you just because you want to be Mr. "nice guy".
It sounds to me that there is no saving this relationship. I have been there myself and in retrospect I wish I had been more protective of myself. Take CONTROL of this situation. For your own wellbeing. Who knows, maybe a display of masculinity will change her mind.
Lovies,
Steph