Domestic troubles cause problems for Greene and Corday. Later in the day, however, Mark shows Elizabeth their spacious new digs and proposes to her. Chen tells Weaver about her pregnancy; she is 22 weeks along. Carter sees Abby at an AA meeting. Afterwards, he asks her to be his sponsor. He also meets with Greene and Weaver about coming back to work. Abby, down from OB, helps a young couple whose baby was born much too early. Benton and Romano clash over an obnoxious homeless man who once again requires extensive treatment resulting from his chronic disdain for maintaining his dialysis appointments. Weaver and Kovac are helpless to assist a severely comatose woman whose longtime life partner is not legally empowered to make decisions about her care.