Cooper Lee is the younger brother of Deb Lee and the maternal uncle of Nathan Scott. Confident and charming, he often clashed with his former brother-in-law, Dan Scott. While visiting Tree Hill in season three, Cooper began a relationship with high school student Rachel Gatina, but he broke up with her upon learning the truth of her age. As a result of his decision to end their relationship, Rachel confronted him at Nathan and Haley's wedding. The confrontation would eventually escalate to the point of Rachel driving off with Cooper in the wedding limousine and running off the Molina Bridge. Upon his recovery, Cooper left Tree Hill for good after refusing to forgive Rachel for faking a pregnancy.