Okay ladies please let me know what I’m doing wrong if I am doing something wrong.

I have a child that’s 3 from a previous marriage... now this marriage wasn’t even a marriage more like a contract marriage because I got pregnant. During our separation we both saw other people , I’m so happy he found someone that he’s going to marry and I did as well. But during the separation he posted me on social media telling everyone how bad I am, okay I never once back lashed. He never was physically there for my daughter so during my divorce I asked for full custody along with supervised visits, and I was granted that. I’m glad I made that decision because now he’s saying that he hates me and doesn’t want her. I’m so furious about him being so disrespectful that I wanted the truth to come out so I posted a text screenshot of him saying that he wants to give her up only because he doesn’t want to pay child support and that I never allow him to see her. So that being said his new fiancé which mind you we are not friends on fb went on my page and saw this and messaged me, brought up my other kids and a few other things and threw it in my face. Wow, okay I don’t know you but thanks for the input. I told the dad that I don’t want her around my child right now because one, she doesn’t know you, let alone her, she needs to feel comfortable. And the response I got was “she’s apart of my life, if you can’t handle this, I don’t want Evelyn”

Ladies, I’m so disappointed in this whole situation but I feel like as a mother I need to scope everything out before I put my daughter in any unknown situation