Carly tries to get Jack out of town when she finds out that Rosanna knows the truth about her due date. Meanwhile, Jack finds out from his perp, Magda, that Carly had an affair the night before the wedding. Jack gets upset and confides in Hal that he believes Craig was the person that Carly was having the affair with. Hal suggests that Jack go and talk to Carly. After Rosanna informs Mike that he is the father of Carlys baby, he goes to confront Carly. She explains to Mike that no matter who the father is, she wants Jack to raise the baby. When Jack walks in on Mike embracing a sobbing Carly he puts the pieces together. Meanwhile, Rosanna blasts Craig for lying to her about sleeping with Carly and choosing to protect Carly over telling her the truth. Rosanna questions whether she and Craig should still get married. Craig gives Rosanna the engagement ring and proposes again as Rosanna gasps at the ring still not giving an answer. Blissfully unaware of Carly and Mikes affair, Molly convinces Lucinda to sell her and Mike the cottage as she admits to Lucinda that she never wants to let Mike go. Marshall tries to reason with Jessica to let him go to D.C. with her but she refuses. Later, Ben discovers that Marshall has left the hospital. Marshall surprises Jessica on her flight.