I think this is simple. You live in the house, and you sleep in your room. She is welcome to sleep wherever she wants.
One of the things that I struggled with is accepting the fact that this is her journey. You need to let her take it, without letting her journey dictate how you lead your life.
Stay in your home and in your bed. Yes, this will create conflict, but don't be naive and think that conflict will not happen. You cannot avoid it.
