i really can't believe musha left black like this. i believe this is because stress had came to black'm mind, his mind was way too much about fighting N to rescue the gym leaders rather than beat the league. he changed way too much for musha. i don't believe for one bit that N was right about musha.
that's why, even though i feel for black "cracking" here, feefee leaving ruby was way more dramatic.
black downfall though by N though, was good as i expected. i don't thing he's gonna come back out of it like white.
edit: reading the pages in the end of the volume, i remembered musha had eaten N's dream. i have a guess it's somehow connected to her leaving black too.