ANDY'S ANSWER: The trick is to stay calm and rational and not fall into the "victim" role. When she's ranting on you for something you didn't do, look her straight in the eye and calmly say, "This is a stretch even for you. You'll have to find someone else to blame because I'm not going to be your excuse every time something goes wrong for you." Be mature yourself and don't get sucked into her drama, because as soon as you do, you lose.