Look out there's the Shark

Know when to say goodbye:

According to Woody Allen, a relationship is like a shark:

"It has to constantly move forward or it dies." If you sense a dead shark on your hands, cut your losses and say your goodbye.

Far too many men make the mistake of prolonging a bad relationship simply because they don't want to hurt their partner's feelings.

However noble the sentiment, that only allows angst and resentment to build."