He didn't know why, but then maybe it didn't really matter why he'd done it. Maybe it was all about setting your boundaries and not crossing them for just once.
He knew there was only one thing he could do. He got up and went to the hospital wing.
'Why did you do it Sirius?'
'I don't know.' He murmered, 'I just don't know. Things don't work for me like they do for you. I didn't mean to hurt you.' And also 'Can you help me?'
'I don't think I can.' Then Remus smiled. 'But I'll try, if you want me to.'