Nessie
I would venture a guess your father imagines himself the head of the family? It's very typical behavior, for an Elder. Protect the ones you love at the exclusion of all else. I was much the same way, for quite some time. Which is considerably harder, considering the way in which our sires function.
He will come to his senses, darling. You are his child. When he sees you, he will be unable to deny that. I know, from experience.