live apart (from someone)
To live in a separate location from someone with whom one formerly shared a house. My parents aren't divorced, but they've been living apart for the last few years. I just think we should live apart from each other for a while, at least until all these legal issues are resolved.
live apart
(from someone) to live separated from a person whom one might be expected to live with. John lives apart from his wife, who has a job in another city. He lives apart, but they are still married.