"More than anything." It's a quiet echo to match him, looking at him like he can see if there's any lie in Sirius' expression. They've both always been terrible at lying to each other.

Which is how he knows something is still wrong, but at the same time Sirius is still so earnest about it.

He sighs slow, drags his fingers through his hair. "You're the best thing in my life, Sirius. I need you to know that."