Let me tell you a story about the one who got away.
Years ago, Tom met Martha, she was great. The two hit if off right away and Tom thought there could be something there. As it turns out, she was interested in George, who was a pretty decent guy in his own right. Tom was bummed at first, but quickly got over it when he fell head over heals for a girl he grew up with, Allison.
It was great for a while, but soon Allison became a bit controlling and alienated Tom from his friends, so he decided it was time for a change.