Petunia asks Harry for help.
I am looking for a story where Harry has beat Voldermont and leaves the Dursley's. Upon leaving he showed his Aunt Petunia on how to contact him if she needs anything. Petuna reaches out to Harry because Vernon is very ill and he is dying. Harry goes to see her but Marge get upset that he is there. He meets Petunia at her house where she explains everything belongs to Marge and Vernon. She is upset and has no where to go so she asks Harry for help. She feels like she can't turn to Dudley because he is getting married they find out that Dudley's fiance is a squib and she knows all about who Harry is. Harry brings them to his home. Harry is in a relationship I think with Severus.