For those who are behind and are alarmed: Shane and Ryan "splitting up" is a bit in Mystery Files (specifically the debriefs) where they stopped being friends after Ryan says he doesn't pay attention during Shane's presentations. It's similar to the Steven vs Ricky bits in Too Many Spirits, or Shane not caring that Ryan was about to be skinned alive in Puppet History. The Ghoul Boys and Watcher aren't going anywhere. It's just a bit. You can breathe. :)