"Yarn?" That's a little confusing, but maybe it's the Observers also trying to give him something practical. Who knows what their motivations are, and honestly Billy isn't feeling too inclined to give them the benefit of the doubt lately. It's hard to be angry, though, especially when Nida rests his head on Billy's shoulder like that, and so much of the remaining tension in his chest and shoulders melts away as he pauses for a second, then just...lets his head rest against Nida's, just for a moment. It's not long enough, of course, and there's an ache in his chest that only grows at Nida's words. He wants so badly to be that something good. To tell him that everything is going to be fine, to make it fine. He's just so worried he's going to screw it up. That he'll just make it worse. But god, he wants to make it better.

Nida's head lifts away from Billy's shoulder, and he lets him go, hand sliding back over his shoulder and coming to rest on the couch between them, not quite touching Nida. "I wondered, a little, if that's what you'd done." His voice is quiet, but it's not judgmental. Billy understands that urge to make yourself hurt, just to feel something at all. "I'm glad you didn't get hurt worse. But I get it." Space, he thinks, and yet he's leaning in, brushing his shoulder against Nida's. "It's hard. Everything about this place is hard. But it'll get better. It'll stop hurting so much, or you'll be able to carry it easier. Maybe not alone, but you don't have to be. Not anymore. When it gets too hard, let us help. Like you were there for me and Tommy when we found out about Wanda. Like you were there for me on the mountain. I'm here."