In this episode, the central characters navigate the shift from casual dating to defined relationships:
deals with the reality of living with her ex, Steve, as they struggle to set boundaries while sharing a space. [S4E3] Defining Moments
becomes fascinated with a group of "lesbian chic" socialites, exploring the idea of a different kind of female bond before realizing it's not the path for her. In this episode, the central characters navigate the
finds herself competing for the attention of a man with a socialite, eventually realizing she wants more than just a casual hookup. In this episode
The title "Defining Moments" highlights the episode's theme: the specific points in a relationship where partners decide exactly what they are to each other .