go back home,
she has a place to go,
she's been planning to leave,
tell her you accept that she doesn't want to be married anymore and you've been thinking about it alot and you're not sure either.

It's your home, go back home.

Weren't you the one telling us several hundred times that you can't legally force her out but all of a sudden she can force you out? Be consistent with yourself and others. Go home. If she complains, you tell her plain & simple, it's your home as well as hers, you won't be forced out of it, she has a place she's been planning to go live in, she has options, you don't, this is your home and it will be until it is sold.

No relationship talk.

Don't be an a$$hole, don't be a prick or a jerk, just be firm, calm, cool, collected and live in your home.