Green eyed monster very prevalent. Stop.
Dear heart, can you for once, stop feeling so much for people and let the brain take over?
“You might have got the impression that there is a little bit more to Aunt Petunia than meets the eye, and you will find out what it is. She is not a squib, although that is a very good guess. Oh, I am giving a lot away here. I am being shockingly indiscreet." - J.K. Rowling.
If the reveal had been that Petunia was a witch ~ Several years after the war, Harry tracks his aunt down to confront her with what he witnessed in the pensieve.
IS THIS TRUE