Had a Sister and Never Missed Her, Baby!

Just as Dandy and the crew heads off to their next attempt at capturing an alien, Dandy gets a phone call that leaves him a bit annoyed, and changing the course of the ship. After a bit of pestering, he admits it was his sister, who needed a ride. Why does he say this is worse than an ex? Guess their relationship is just a bit more complicated than that, baby!