Mother knows about my sex life

I made poor choices when I was in college and slept with many guys, my junior year it caught up with me and I feel in to a depression. I changed, went to therapy and now I am in a serious relationship . My mom a few days ago went through the iMessages on my laptop (for many hours) and found the texts to my friend about my personal stuff. She’s now slut shaming me and making me uncomfortable to come home. I know that I was a whore and disgusting but now I have changed and this was years ago, things I never wanted her to know. I know she’s my mom but she violated my privacy. I don’t know what to do or how to fix it, I’m debating to move out. I feel this can not be fixed and she won’t ever look at me the same again. Any advice I would appreciate.