She held a grudge.
He held a grudge.
Both did for something that never happened. They made up stories of how they would bring each other down, narrated each other how ballistic-ally they would cage down. They did none of what they said they would. The third person listening to this, did exactly what the two said to each other. Of course the third one was the common enemy they had.
The two never got to know the truth, the hatred grew. It grew stronger. Way strong that they wanted to kill each other. Then came this third fella, took both the stabs of the two knifes, one on the front, the other on the back.
It’s a fiction piece of you, your heart and your brain.
See who is who? 😉