I don't hate you Padfoot I really don't hate you Moony

Sirius Black has been living with the Potter's for nearly 2 years and is constantly filled with guilt and regret about leaving Regulus behind. In the summer before the Marauder's sixth year, Regulus turns up at the house with nowhere else to go and no one else to turn to. Can they forgive each other? Can they both let their guard down enough to be loved? Can the Black brothers move on from their past? I don't own any of the characters they all belong to jkr