Dear Harry,
You must be married, already have kids. I wonder if they look like you. Green eyes, Lily's eyes, dark hair. The thought is strange. I'm getting ahead of myself aren't I? You must not want to talk to me. After the way I treated you. Locking you in the cupboard. Treating you like trash. I'm sorry. I really am. I'm sorry I wasn't a mother figure. I'm sorry I didn't tell you, you were a wizard. I'm sorry for everything.
Vernon tried to convince me you were a freak. I wouldn't listen. But, the thought of Lily dead and she sacrificed herself for you. It killed me. It made me mad at you. For something you didn't have control over.
I'm sorry. Maybe we can start anew? If not feel free to ignore this letter.
Love,
Aunt Petunia