I would consider refusing to see your biological daughter, ever!, a case of "abandonment", even if he paid some child support.
Returning her a card without any writting, just but signed with "Randy", like in some third person. What a total jerk. Be a man. Not some 14 year old boy.
Yes.
Guy can't win. It's quiter apparent he didn't want to be involved with the daughter. He made that clear. And almost a million one isn't "some child support". He met his obligations. The girl now wants nothing to do with him, except the right to continue to pillage his money.