This is often a tricky situation when the LBS moves out. We always advise the LBS not to move out in the first place, because the WAS is the one that should feel the "inconvenience" of being displaced and not having that home base anymore. Also it makes a statement that while the LBS is allowing the WAS to leave, they are NOT going to put up with their life being disrupted any more than the WAS is already disrupting it, and that is a show of strength that the WAS may not like but will respect. Speaking from experience I can say that that is exactly how it played out for me. Luckily I had found DB'ing by the time it came up for me and I was already fully prepared on how to deal with it. When my ex brought up separation, I told her I would rather she stayed and worked on the M but if leaving was what she wanted I would respect her wishes and not stand in her way. She later asked why she was the one that needed to leave and not me, and I told her she was the one that wanted to end the M, why should I have to move. I told her it was my home and I wasn't planning on going anywhere (I'm still in it to this day by the way). She wasn't at all happy about being the one to move out but said she understood and respected my position.
A lot of LBS's seem to think that placating the WAS will gain them brownie points, but as Sandi frequently points out it just makes the WAS have even less respect for the LBS because they are "running away" rather than standing their ground. But moving out and then moving back in will not be respected by the WAS either. It's likely to make her very angry. So if you move back in, it has to be because it's what YOU want, not to get a reaction out of your W. Because the reaction is very likely not going to be a pleasant one.
As Twofeet said you should consult a L before moving back in. That said, you would not be the first here to move out and move back in and in those cases we also suggested consulting a L, they did and from what I understand the law is that if you are still married and both names are on the lease/ mortgage then you have as much right to the house as she does and can move back in at will without her permission.
