Although Rebecca said she wouldn't meddle in sister Lisa's love life, she can't resist finding out why Lisa would break up with "nice guy" Neil. When Lisa finds out what Rebecca did, she finds a way to get back at her. Meanwhile, as Shawn is on his way to pick up Perry from his dental surgery, he gets distracted by a pretty girl, proving once again that the ladies come first in his life, so a fed-up Perry kicks Shawn out of the apartment and refuses to forgive his BFF.