Khloe had filed for divorce from the basketball player in December 2014 amid rumours that he had cheated on her with multiple women and was suffering from drug addiction.
Odom has so far refused to sign the divorce papers, but Khloe, on his birthday Thursday, took to her Instagram page to post an emotional quote.
She posted a screenshot of a poem called “Closure”.
It read: “Closure: Like time suspended, a wound unmended – you and I. We had no ending, said no good-bye. For all my life, I’ll wonder why.”
Khloe is also said to have called the Odom to wish him a happy birthday.