You stood outside Grimmauld Place, holding onto Regulus’ hand. Neither of you had moved in some time. The last time that either of you had been into Grimmauld Place was when Walburga died. Neither of you had wanted to go back. For Regulus, it was the knowledge that he could let his hellish childhood go and truly "be free." For yourself, it was seeing Regulus finally "come alive." He no longer had to be the perfect son that his parents had expected him to be. Regulus could no be himself.