Why not just ask her to please respect your private space, and call to schedule a time to come over before she comes. And maybe say, I hope you can respect my boundary on this without my going to the next step, which will be to change the locks. (But make sure you are OK legally to change them before you make that statement. I have no idea about your specific area and law!) And do it all very kindly and business-like, with no emotion involved. Just a thought.
Yeah this is the approach I am wanting to take. The house it only in my name and I bought it before we were married so I can legally change them if I want, but I'm really trying to show her nothing but love and grace through this. Idk if that will back fire on me but it's the only approach I'm willing to do