I’ve been in a relationship for three years. My child was 2.5 at the beginning of the relationship. I made the mistake early on of teaching my kid to call my partner daddy. My partner became mentally ill, and emotionally abusive. I left him. Now, he continuously messages my child, myself, and even my new partner begging to see “his child”, making threats, and harassing me. I’m trying to avoid making contact with him, the sight of him throws me in to panic attacks. He is threatening to come by my house. He won’t leave us alone, and I don’t know what to do...