also more recently followed me to Cleveland. She sees no point in being alive outside of relationship to me and me creating boundaries with her has just made her behavior become really unhinged and concerning quite rapidly. I am concerned about her, but I can not be involved in getting her help /fin

The expense of rekeying the house for your mental health and wellbeing was worth every dime. Sounds like you are doing the right things for the correct reasons: A) your safety first B) concern for your friend Hold firm and stay safe!