Rory’s response is a clever, albeit ironic, experiment. Rather than simply arguing, she stages a "Donna Reed" evening for Dean, complete with a dress, a cooked meal, and a submissive persona. This performance serves two purposes:
Through her research, Rory discovers that Donna Reed was actually an uncredited producer and a powerful woman behind the scenes of her own show. This discovery allows Rory to bridge the gap between her modern values and Dean’s appreciation for the aesthetic, finding a way to respect the woman without necessarily adopting the lifestyle. The Subplot: Christopher’s Return [S1E14] That Damn Donna Reed
It highlights the performative nature of the "perfect housewife." By putting on the apron as a costume, Rory emphasizes that this lifestyle is a choice (or a role) rather than a natural state. Rory’s response is a clever, albeit ironic, experiment