I know what you mean, I've been through that with other bands\artists. No matter what they always impact us big time ne? And sometimes we find ourselves turning back to them and that's okay, it's good to reconnect and be able to look back ^^
The nice thing about arashi is that they're always up to something, you always have stuff to look forward to, and for me that's a big factor. I feel safe with them somehow, like I could trust them with nearly anything even though I don't really know them haha
They're very special I think.
(Sorry for rambling :p)