Another happening within this season is the dynamic between Sam and Naomi who by the finale realize they can no longer be friends as well as the deepening romantic relationship of Cooper and Charlotte. Addison was romantically linked with Kevin Nelson (played by David Sutcliffe), a police officer, but later realized their relationship was going nowhere. Towards the end of the season, Addison falls in love with cardiovascular surgeon Noah Barnes, who as it turns out, is married and is expecting his first child. Matters become more complicated when Addison realizes that Noah's wife is one of her patients. Archer Montgomery (Grant Show), Addison's playboy brother, also made sporadic appearances causing trouble for her and Naomi. Archer was found to be with an aggressive brain tumor which was later diagnosed as parasites. Addison sought the professional help of her ex-husband, Derek Shepherd (Patrick Dempsey). After Derek successfully saved Archer, Addison discovered he was back to his old tricks cheating on Naomi.
Violet stirred some of her own drama when she began dating Sheldon (Brian Benben), who works for Pacific Wellcare, and Pete. During the latter half of the season, Violet was found to be pregnant although she did not know who the father of her baby was. Furthermore, Violet found herself and her unborn baby at the mercy of a psychotic patient bent on taking Violet's baby by any means necessary in the closing moments of the season finale. Meanwhile, Dell struggled with his own issues caused by his former girlfriend's drug habits and the fight for custody of his daughter Betsey. Some of the medical cases that caused a stir and tension among the doctors at Private Practice was the issue of abortion (a first for the practice), the sex re-assignment of a newborn, the sexual activity of a 12 year old, the switching of embryos for two mothers-to-be and a young couple who later discovered they were siblings.
In the second season of Private Practice, financial ruin looms over the team as they grapple with such hot-button cultural issues as abortion, teen pregnancy, vaccination, and the right to die, as well as more esoteric issues like accidental incest and a hermaphroditic baby. The doctors engage in vigorous ethical debate and even more vigorous sex as they bounce off each other romantically and professionally.