2 Samuel 13:2
"And Amnon was so vexed, that he fell sick for his sister Tamar; for she was a virgin; and Amnon thought it hard for him to do anything to her."
Cross References (ranked by relevance)
1 Kings 21:4
And Ahab came into his house heavy and displeased because of the word which Naboth the Jezreelite had spoken to him: for he had said, I will not give thee the inheritance of my fathers. And he laid him down upon his bed, and turned away his face, and would eat no bread.
Song of Solomon 5:8
I charge you, O daughters of Jerusalem, if ye find my beloved, that ye tell him, that I am sick of love.
2 Corinthians 7:10
For godly sorrow worketh repentance to salvation not to be repented of: but the sorrow of the world worketh death.