I'm the OP. He is most definitely not suffering from any disease that could impair his memory, and even if he did, his girlfriend could have reminded him. He is suffering from being an immense asshole. He never was much of a father to me, but he bawled like a baby when he got the news about my pregnancy, visited me in the hospital where I was waiting for the last 1.5 months before going into labor and I expected him to become a bit more involved. To the people saying maybe the family is too big: I am his only daughter, this is his first grandchild. He has no nieces, no nephews and no young cousins. So it's impossible to drown in babynews in my family.