User blog comment:AlexisVespi/If a supreme being came back/@comment-5105419-20150910224142/@comment-93.217.57.104-20150911101526

Maybe they are not very happy with beeing stuck in a fantasy world and they want to go back to their families. Maybe they are down with their patience and nerves, maybe Albedo tried to kill them, maybe they and Ainz get in an argument about Ainz actions or the treatment of Albedo after a killing attempt...

There are quite some ways a reunion could turn into a fight even i can imagine, therefore i´m sure something like that is easy for the autor.