Read DR ASAP. Do it before you do anything else because much of what you've done to this point is the opposite of what you should be doing and has pushed your W farther away. Read Sandi2's 37 Rules and live those tips!
Regarding moving out, generally we advise the LBS to never move out. That is the WAS's decision to make. Stand your ground. If your W wants to separate, then let her make the tough decisions of figuring out where to live and how she'll pay for it. Also keep in mind that kids see the house as "home" and they don't want to be displaced from their home, especially when the family is breaking up. One more reason for the LBS to stay home.
