Worries about dad showing up at my house

I recently went NC with my whole family after a lot of pretty upsetting events led me to feel it was my only option to have a life not consumed by them. I did so by texting my mom and telling her I need to disconnect from the family bc I was really hurt by all that happened , then I blocked them. After that I had been overall really feeling better with them disconnected (there was and is grief but the fear of them sending something and making me feel bad or them pretending all is fine went away). About 1 month later (yesterday) my dad texted my partner then left me a voicemail (I could see it under blocked). He said and sent a lot of awful things, including a threat to show up at our house and a threat to contact my work if I didn’t talk to him. I responded by basically saying exactly what I sent my mom and reblocking him. I also told my boss.

I really don’t think he would show up (in a second text he somewhat retracted it saying I’d probably get a restraining order) but at the same time I’m really scared he will and have been trying to make it look like I’m not home when I am (today I worked from home and haven’t left the house and am mindful about using lights. It’s hard to relax and I hate that he knows where I live and work. I’m also feeling pity for him - I love him and this was never what I wanted, but I really feel I exhausted all other choices (his voicemail and text really tried to make me feel guilty and it was definitely on purpose.). Hes very mentally Ill, and I used to be his confidant bc I’d listen - so I know a lot and also feel both betrayed and like I betrayed him (I know I didn’t)

Any one have any suggestions on how to live and feel peace after something like this happens ? It feels like no matter what I do I can’t just live my life without them trying to mess with it. I just need a break and them not being willing to give me one makes it feel like this will never get better. Any words of encouragement would also be appreciated- im really tired and overwhelmed by this