Guys, Guy why would a man left his ex wife still live in a house that still has his name on it?

So I know a man that is separated from his wife who she put a gun to his head one night. it's been years now and still no divorce. But yet his and her name is still on the house together. If she stops paying on the house it will go against him and her. But why wouldn't he just do something about dissociating with her?

Guys, Guy why would a man left his ex wife still live in a house that still has his name on it?
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