We had the same girlfriend when I was in high school. Aleene. First, she was mine. We split up and she found consolation in Sean's friendship. He grew attached and I grew viciously jealous. It was due to my jealousy and Sean's infatuation that she and I broke up the second time. My friendship with Sean was dwindling quickly.
This triggered one of the most creative and mutually anatagonistic wars of all time. I chased him with tire irons, he vandalized my car. I chased him in the night with my car, he put tape over my license plates. I filled out numerous police reports, he threw a bug bomb in the back seat of my car. The ugliness only increased as time passed.
The war continued on even after Sean and my ex-girlfriend became involved in a relationship. I was tired of the war, and tried to move on with life. The constant harasement was taking its toll. Finally, they broke up and everyone settled down to a certain degree.