How to Complete Your Past and move on?

Does the following scenario remind you of anyone?
Sue was totally in love with Jim. The couple met in high school and dated for
eight years. Everyone who knew them expected them to get married and live happily ever
after together. Then Jim met Karen. Before anyone knew what was happening – including
Sue – Jim had eloped with Karen, putting an end to all of Sue's dreams and expectations.
Sue was devastated. All she could think about was Jim and how she had been cheated out
of a happy and secure lifetime with him.