You are Sirius's child. You don't have an amazing relationship with your dad. You live at grimmauld place and the rest of the order is there for a while. Everyone is at the table to eat dinner. Everyone sits down and are having a friendly conversation.

Suddenly, Sirius says, Harry is amazing. He is like the child I never had.

That hit hard. Everyone stopped eating and looked at him. Molly even stopped cutting vegetables.