When Carrie's creating goes co-op, Aidan provides to purchase her apartment (plus the 1 subsequent door) so they can transfer in collectively. She agrees and later finds an engagement ring in his health and fitness center bag. Aidan later proposes, and Carrie accepts, though she's undecided

The two argue in the street with Carrie accusing him of turning up Every time she's happy to destroy items for her. She tells him she's going to Paris and to leave her by yourself. She tells him she loves him and would not care if he in no way marries her so long as they may be together.