a friend called me yesterday.he recently ended his engagement with his fiancee.she used to live with him in his house,he asked her to leave but she won`t.so he told her he will change the key locks and she came with the police and they hold him she can stay.my question now is can she stay there? he is the owner of the house.he is in california and the police told him it is her right to live there.they are not married or something and i never heard such a thing.any advices or experiences?

thanks