Bookworm

Hey, this is gonna sound super corny and shitty, but thx for voting on my little marauders wtm, super grateful<333

If anyone remembers a Wtm style book with 
          - Sally Jackson and Regulus Black dating (After Percy is born)
          - Sirius thought that Regulus was dead until the Wtm
          - everyone is reacting at Hogwarts 
          - Percy see’s regulus as a father like figure
          - Gabe unfortunately was still around till the Medusa head incident
          Can’t remember much more but could someone give me the name and author of it, I remember reading it just not the name or author of it