Sirius paused. With Remus's hand over his own his words finally managed to sink in.

He had assumed that he was on his own. There was nothing left to live for with James and Lily gone. Hagrid had taken his godson under Dumbledore's orders. Peter was a traitor. Remus...

Remus still needed him.

Sirius opened his mouth to speak-- an apology, an explanation, but whatever it might have been neither of them found out. He choked and buried his face in Remus's shoulder.