[s7e13] Don't Deceive Me (please Don't Go) May 2026

Mark finally confesses the pregnancy to Lexie Grey . Lexie, feeling like Mark is starting a second family without her for the second time (referencing his daughter Sloan), walks away from the relationship.

Season 7, Episode 13 of Grey's Anatomy , titled originally aired on February 3, 2011. This episode serves as a critical turning point for several major character arcs, particularly focusing on the fallout of Callie's pregnancy and the start of Derek’s Alzheimer’s clinical trial. 🩺 Clinical Trial Conflicts

Despite the betrayal, Arizona Robbins decides she wants to be part of the child's life. [S7E13] Don't Deceive Me (Please Don't Go)

Guest star Rachael Taylor debuts as Dr. Lucy Fields, a new obstetrician who is immediately irritated by Callie's frantic behavior. 📱 Surgery in the Social Media Age

Derek chooses Alex Karev as his resident instead of his wife, Meredith Grey , arguing that their personal connection and Meredith’s family history (her mother, Ellis) would make it too emotional. Mark finally confesses the pregnancy to Lexie Grey

In a lighter subplot, attempts to modernize the hospital by live-tweeting surgeries for educational purposes.

Chief Richard Webber is vehemently against the idea, leading to a comedic power struggle. This episode serves as a critical turning point

Despite the Chief's disapproval, Lexie’s "obsessive tweeting" actually helps save a patient's life by locating specialized equipment at another hospital through her social media network. 🌟 Notable Guest Stars