The fact that she needs her sister with her at all times is a dead giveaway. And I remember her interview with Stern where she revealed just how vulnerable she is in relationships. Despite desperate attempts to prove otherwise (the taxi driver story), she is a big old sap. All of this is fine, but in the world of standup you have to be able to roll with the punches. When things get even a little willing, she lashes out defensively, the sort of tactic perfected by Opie.