Desiring God has a great article explaining the Doctrines Of Grace (Calvinism). Well worth the time to read.
"But it displeased Jonah exceedingly, and he was angry" - Jonah 4:1
If God would do what I want him to do, the world would be a lot worse off.
Jonah had a mission. He didn't want to do it. God made sure he did anyway, even if it meant causing Jonah to suffer. And yet God used him to bring the people of Ninevah to Himself.