My advice is don't move unless you are legally obligated to. If your name is on the lease, you should live there too. She is the one who wants to split, so let her find a new place. If she leaves and you can't afford it, find a roommate. This is her decision, not yours and she should be the one taking the actions. You have no business making it easier for her. Do not enable her decision to make you miserable.

~Mark

Me: 38
W: 34
Together: 9yrs
1st M: may '03
1st D: april '08
1st bomb: june '08
remarried: oct '08
2nd bomb: aug '09 --(W asked for D one week into 3 mo. trial separation which was meant to save our M)