I have to admit, I utterly adore this story. I'm honestly addicted. I think I've gone back and read this thing about four times. I'm twiddling my thumbs, patiently waiting for an update. Jimmy is such a freaking nut it's really hard for him to come off as crazy instead of little-kiddish in a lot of fanfics and the author sounds like they're just trying to be random. But when you have his thought process written out so well, you can see why he's acting the way he does and it's his actual personality. Like when he sits on the sofa between Zacky and Brian, or when he tells Johnny "I'll fucking kidnap him if I have to", those things would be seemingly random and kiddish, but the way you write the process out makes it very Jimmy-like and I rightly admire that. It seems like a small thing to write such a long comment about, but I'm really impressed and it's a big part of what makes the story so addicting to me. In short, keep writing, you're doing wonderfully!