This is why I understand when dudes treat the step-child different from their own. I could never raise a child just for them to turnaround and say they don't recognize me as their true father. Like, no. Never going to be me.
I watched this happen with my mentor and the half brother of his daughter with his babymom.
The boy's dad had been locked up since before he was born, dude stepped in and raised him since he was 2 years old. He loved that kid like he was blood.
But the biological dad's family had been putting in his head "that's not your real dad, your real dad is coming back", once the bio dad got out of prison the little boy (now 8 years old) basically stopped fukking with my mentor completely (the bio dad and babymom played a big part of that).
Dude was hurt, but eventually got over it. But he's like "fukk that kid, I'm only worried about my daughter" now. And in the bio dad's defense, he has been in the boy's life ever since he's been free.