I swear, I’m a vampire

Lately your roommate Lillian has been acting weird. Sleeping all day and staying up all night. Her wardrobe even changed to black and red gothic dresses. One day out of the blue, she confesses to you that she is a vampire, but you don’t believe her. You know she is wearing contacts to change her eye color and you clearly see her “vampire” teeth are fake. Do you just go with it or do you help her get out of this delusion. The choice is yours.