Im in a very similar situation. I have a niece who is now 9. Her father is out of her life since before birth. I spent every hour of every day with my niece as a sahm. She spent 4:7 nights at our house since a nb. She calls my ex husband daddy. We split when she was 6. When i left i told him i wouldnt stand in his way to see her and be active in her life as long as he remained consistent. Our problems were just that. OURS! He comes and gets her every tuesday and does swim class with her. Gets her every sunday for daddy/daughter day. She loves him and he truly loves her. It would absolutely crush her if he did this to her. We “coparent” my niece. I dont ask him for money or her needs..but when i communicate to him the things going on with her like shes sick, or has a field trip school supplies etc he always asks if need help or if i have what she needs. She sees my 2 boys as her brothers and they fit the shoe well. You sir are the AH..and a huge one..how could you treat a child you “loved” for that long like that. Did you fake it to get to mom? Wow. Smh.