Worried my ex might harm me
I was involved in a year and a half relationship that I ended 6 months ago. My ex was controlling. He never raised a hand to me, but when I would try to leave he would always try to talk me out of it. When I would try to leave in frustration, he would physically restrain me. It is hard to explain the dynamics, but he was definitely emotionally controlling. I'm relieved to be out, but he still contacts me at least once a month (after several stern responses to his phone calls it has dwindled to this). It was so bad that I left a lot of my things at his place and was unable to retrieve them because I knew he would make it miserable for me and he kept trying to get me alone in his place.
I'm finally free, but he emailed me today to say that he has my keys to my house and car. I'm really alarmed because there were at least 3 occasions where I noticed a lock was locked that I never lock. I was panicked, but finally decided I must have locked it without realizing it. Now I'm really worried.
I can change my locks on my house, but what about my car. I have a remote key lock and I wonder how much it would cost to change it. Should I bother? Beyond just reasoning, I have been afraid of him for quite some time. I worry that he would be someone who might do something irrational. He is a driven businessman and was laid off from his dream job about a month ago. He has no family that he speaks to and I worry he might be slightly irrational right now. He seems to believe that he can control everything including my feelings for him.
What should I do? We aren't young kids. I'm 36 and he's 38. He's supposed to come drop off the keys tomorrow or Sunday.