I know splitting up isn't ideal for the RP but I can't see Laharl looking at the bigger picture or enjoying how small and powerless he feels. He can't do what he wants if he works with the team, I can see him sticking around only until he has a way to find Etna and Flonne then those two would probably convince him to stay rather be a whiney baby. I'm trying to rationalize this but am having a bit of trouble.