Port in His Storm," he meets Dr. Charlotte King, chief of staff at the local hospital and someone he knows professionally, through an on-line dating site. She is completely embarrassed by this and walks away from the date, and attempts to avoid Cooper thereafter, but the end of the episode, she agrees to have a drink with Cooper, but instead, the two end up having sex and enter into a strictly sexual relationship in later episodes. The two begin to care for each other; however, the relationship breaks apart after Cooper finds out Charlotte has secretly been making and executing plans to rent out the fourth floor of the practice. In the episode "Homeward Bound", he goes to Alabama to find her and see her dying father. He assists in pulling the plug and on the ride home she cries in his lap. In "Nothing to Fear", they reconcile and she asks him to marry her. He initially agrees but later says he wants to spend the rest with her but declines. In 2x14 Charlotte forgives him until he says he's moving in with Violet. In 2x15, he reveals that Violet is pregnant, he is not the father, but he wants to help. He tells her that he loves her but she leaves saying that his first child should be with her. Later Charlotte sleeps with Archer to push Cooper away. When she tells him, however, he refuses to give up on the relationship and pledges his love. Moved, she apologizes, and he says that he forgives her. They start fresh and everything goes well until Violet is attacked by a former patient, Katie. Cooper blames himself for not being there to protect her. In the episode "Right Here, Right Now", he tells Charlotte that he is broke, and she pays to buy out his share of the practice. In the following episode, Charlotte joins the practice with a specialty in Sexology which makes him uncomfortable. He also feels emasculated, which is a running theme for him in season 3. In 3x07 Charlotte reveals that she was married before which causes tension between them and he breaks up with her later. In 3x16 he comes back from a two-week vacation. She yells at him for abandoning her, and he says that it was a mistake to sleep with her. Later he walks in on her and Sheldon having sex. In