Please tell me I’m not crazy or insane?!

So let me just say I am in a healthy relationship, I’m happy and my bf takes care of my daughter. Pays for everything. Treats her like his own. Her biological dad dropped her at my door two months ago after deciding he couldn’t do it when a week prior he wanted to keep her. She loves her dad and blames me daily for what he’s doing. I beg him to spend time with her. Here’s a sample of the conversations, just today. But I am going nuts. I literally cry bc I feel so bad and idk what to do anymore.

Update: My bf and I have spoken to my daughter about the situation and fully explained to her what is going on, that we will be proceeding to court, how things will happen and that we love her no matter what. That we will continue with therapy and make sure to schedule fun things this summer to maybe take her mind off of things right now. She understands but is definitely sad and let down about the situation. As of now, the child support is coming thru. My bf would love to adopt her( since he’s military she would get amazing insurance which the state doesn’t make her dad pay I do , however her biological dad refuses to sign over his rights. I’ve tried before. It becomes a big fight. Him and his gf have blocked me, but I still send updates and stuff so they can’t say I didn’t try. We plan on moving soon and I will have that sent to his work as a certified piece of mail he has to sign for. Thanks ladies so much for the support! I just get so tired of dealing with it after so long!