1. To replace your boy/girlfriend with another of equal, or lesser value.
2. What a fucking loser does on purpose
3. How good people deceive themselves into thinking they've moved on with their lives. One can combat this deception by trusting their heart, and following their gut. Initial gut instincts are 99.9% accurate 100% of the time. However, people either forget, or dismiss them immediately.
Billy wanted to be like all the other kids in his class so he chose to trade down and move on with his life and subconsciously forfeited his balls, making him a unic.