Let's play a game called "the hiding Buddha." The game is based on a tale in which the Buddha comes into the life of a monk disguised as his adversary. It is a way of shifting negative thoughts about someone into a moment of self-reflection and gratitude. The point is that no matter how much of a jerk someone is, he or she can still provide you with an opportunity for personal growth. Remember, your journey is not about making that person less of a jerk; it is always and only about you.
So, here is what you do. The next time someone does something that gets you mad, imagine that she did not actually want to do it, but her Buddha-self accepted the task to help you reach enlightenment. Imagine that under her mean behavior is a smiling Buddha, who only wishes the best for you. Perceive where you are being tested in this situation, and where you can choose to act from your higher self. Say an inner thank-you and acknowledge how unpleasant it must be for her to have to act in such an obnoxious way. Then, take on the challenge of responding with compassion and gratitude.