[cypher]

It's not that unusual for them to still sleep together even after there's been some fighting, I guess once the dominance issue has been settled then they settle back down to some extent but it often doesn't last & can change quickly, my biggest concern at this stage would be that Snowball is going to be stressed, possibly fail to thrive & may remain a timid unhappy ham.
You could try dividing the cage, it would be a bit small for both of them so not ideal but could be better than keeping them together, it might be better to use wood or something as a divider so they can't see each other though.
If you have the space maybe think about making a bin cage for one of them.