Toxic person keeps coming back?

Hello, I’m a 27 year old woman and I’ve been dealing with a toxic person for a few years. I ended up cutting them out of my life around two years ago by blocking all of their social media. All of a sudden, they started making new accounts to harass me when I post about my workouts, how I’m succeeding when it comes to my dreams and when good things happen to me. They always stalk my social media and continue to make new accounts to harass me. I don’t engage with them and I just proceed to block their accounts but they keep coming back and I don’t know what I should do.
Toxic person keeps coming back?
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