"We're friends," he said, and now there really was no hesitation to it. Peter was his friend. One of his best friends. And he'd fucked it up before but he wouldn't this time. Peter was his friend and he wasn't going to be conflicted about that anymore.
"We're more than friends. We're the Marauders. I don't want us to lose that. I thought I did, maybe, I thought that we'd fucked it up too much, but we haven't. You, Remus, James. You're my best friends in the whole world, and I love you Peter. I'm sorry I didn't always show it. That changes now, and you can call me out whenever you need to. And you can unload on me more, if you need that. I heard what you said, even if I was freaking out, and I know there's a lot there for you too. I won't interfere with James and Lily, that's your thing with them, but I'll listen if you need to talk about it more."
He hadn't even really processed Lily being back, beyond being happy to see her. Lily means sharing James. But that was another very petty, selfish thing and he wasn't going to let it go further than his own head.
"I'll try. Bottling is my specialty though. I'm going to have to work on it."