Leaving a toxic relationship

I’m not sad because it still hasn’t hit me what really happened 😒 Around this time last year my baby’s father broke up with me because he was tired of me telling his to get his shit together. He also spent 2 whole hour on the phone with some girl and I was definitely not ok with it. We ended getting back together a couple months later. Everything was ok but then his ex reached out to him and they talked which I wasn’t ok with that either. Months later we we were doing fine no interruptions and recently about a week ago I noticed he was acting very strange no calls , later reply’s and wouldn’t post a picture of us on his social media. Today I noticed he’s been talking to a girl for 3 days straight since morning to night. There’s no flirting just small talks but I want ok with it because it’s so strange everyday all day. I told him to stop yesterday he said no . I warned him 3 times to stop and asked to block her . He asked for her number and she gave it to him . I jumped in the conversation asking her to stop and walk away . He message me saying that was wrong of me to send her a message and saying that . She said I don’t want any problems bye. He kept on saying there won’t be any problems I promise and she said no you have a gf .

He said that was wrong of you and I asked for her number to make you more mad because you were just saying things and not trusting me. He said I don’t want anything with you anymore.

I’m not sad like crying but I’m confused did I do wrong ?