Life is unfair that's true.
When both lions thought they eventually would be together everything went wrong.
During the battle with strangers Kovu and Kopa were separated and lost eaxh other.
Kovu searched for his beloved restless, nights and days. He could not let himself give away. Idea of Kopa being dead came into his mind making him shiver from horror and fright. However years went by and Kovu lost his hope.
He made his own pride. With a heavy heart he accepted a crown. He was a good ruler and was ready to spent his life as a king until one day his house - stewart informed him that a stranger came to ask an audience with the King.
The story of what has happened promised to be long no saying tough..