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Mark and Stephanie's marriage is rocky as Mark can't bring himself to forgive her. At work, Stephanie clashes with Tom Chasen again over an article she refuses to print. Rachel meets with Tom and promises to get him a much better job at British Vogue if he confesses to being the leak. Tom agrees and confesses to Steph, who reluctantly has to rehire Carrie. Nikki informs Linda she's found an anonymous buyer that will purchase the Renoir for $5 million. Carrie forces Steph to make her an executive editor. After another romantic evening, Peter and Alex have sex for the first time. Mark unwillingly ends up in bed with Carrie again. Carrie is planning a surprise birthday party for Peter but Rachel learns about these plans and manages to get Peter with her to dinner so he never finds out about the party. She even tells him she loves him but Peter remains loyal to Alex. Nikki visits Allen to end their affair once and for all, only to discover that he is the anonymous buyer of the Renoir. Gil and Carrie confront Rachel with ruining the surprise party. Allen reveals to Linda that he knows she's tried to sell the Renoir to get the money to leave him. They discover that there are still some old feelings left and they reconcile. Mark and Steph reconcile too but he hasn't forgotten about Carrie. Add a recap »