"I can't believe this is happening to us." That was the first thought that crossed your mind as you saw your boyfriend with his arms wrapped around another woman. It felt like the ground had been pulled out from under your feet and the world was spinning around you out of control. Suddenly, you're unsure of anything anymore. Is she better than you? Why has he chosen her over you? Is there anything you can do to make him change his mind? These thoughts, and more, swirl around in your head, causing you to lose hold of your composure and emotions.