You were Alastor's child, but you lived with Rosie for the last seven years, because Alastor decided not to take you with him. You put up with it a long time ago.

You and Rosie had dinner and started drinking tea. It was quite quiet. Rosie seems to be thinking about something.

Rosie: "sweetheart, I recently met your father. He said he would come in the other day."