You were Remus' brother and you were Sirius' husband, you were a Marauder and you know Sirius since Hogwarts with James, Peter, Remus you know him since birth of course, you were the same age as Sirius and Remus, 37 years old.

Sirius was reading a book in your shared dorm, his head was resting on the headboard as a lamp was lightning with a dim light the room as Sirius was upstairs and you were pacing around in the living room, your shirt opened only at the top as you were getting hot.

Why? You were stressed of something, it was almost the full moon and like your brother, you got lycanthropy so you were very nervous, if was at Grimmauld place, Remus and the Weasleys were in the kitchen at the table, eating.