Why not make a contract with her to provide for her safety?
Sit down and listen to her concerns, get them concretely in writing, and promise with a signature and a witness that the FIRST time any of those things she's concerned about happens, you will move out within 24 hours.
Adinva 51, S20, S18 M24 total 6/15/11-12/1/12 From IDLY to H moving out 9/15/15-3/7/17 From negotiating SA to final D at age 50 5/8/17-now: New relationship with an old friend __ Happiness is a warm puppy.