A blonde who suspects her boyfriend of cheating on

A blonde who suspects her boyfriend of cheating on her goes out and buys a gun. She goes to his apartment unexpectedly, opens the door, and, sure enough, finds him naked in the arms of a redhead. Well, now she’s angry. She opens her purse and takes out the gun. But as she does so, she is overcome with grief and points the gun at her own head. The boyfriend yells, "No, honey, don’t do it." "Shut up," she says. "You’re next."