Qays & Layla

Qays ibn al-Mulawwah ibn Muzahim was a Bedouin poet. He fell in love with Layla Al-Aamiriya, also known as Layla bint Mahdi ibn Sa’d, from the same tribe. He soon began composing poems about his love for her, mentioning her name often. When he asked for her hand in marriage her father refused as, according to Arab traditions, this would have meant a scandal for Layla and her family. Soon after, Layla married another man.
When Qays heard of her marriage he fled the tribe camp and began wandering in the surrounding desert. His family eventually gave up on his return and left food for him in the wilderness. He could sometimes be seen reciting poetry to himself or writing in the sand with a stick. There were many minor incidents involving Qays following his descent into madness.
Layla moved to present-day Iraq with her husband where she became ill and eventually died. Qays was later found dead in the wilderness near an unknown woman’s grave in 688 A.D. On a rock near the grave he had carved three verses of poetry which are the last three verses attributed to him.

However, most of his recorded poetry was composed before his time in the wilderness. Among the poems about Layla attributed to Qays ibn al-Mulawwah is the following:
"I pass by these walls, the walls of Layla
And I kiss this wall and that wall
It’s not love of the houses that has taken my heart
But of the one who dwells in those houses"