I got roasted in another post for commenting that I would have told someone leaving an abusive relationship that no they absolutely could not stay at my house for a "single night". Anyone who has ever actually offered someone "leaving an abusive relationship" knows how that actually goes - exactly like you've just described. There's often drugs or alcohol involved at the end of the crappiest relationships, and I'm not up for putting my family or my belongings through that nonsense again.