Mark travels to Seattle, intent on convincing Addison to return with him to New York, but his offer is rejected and Derek declines to renew their friendship. Mark returns during season three at Addison's drunken behest, but she again rejects him once sober. Undeterred, Mark sells his successful private practice (which he previously shared with Derek) and takes over the plastics service at Seattle Grace Hospital.
Mark travels to Seattle in hopes of convincing Addison to return with him to New York, but she rejects his offer and Derek declines to renew their friendship. Mark returns during season three at Addison's drunken insistence, only for her to reject him again once sober. Undeterred, Mark sells his successful private practice (which he previously shared with Derek) and takes over the plastics service at Seattle Grace Hospital.