In "Just Say Yes," Aidan asks Big to marry her. So does she just say yes?

Sex and the City Season 4 Episode 12 Quotes

Miranda: Why are you proposing?
Steve: I thought that's what you wanted!
Miranda: I don't want to marry you, Steve!
Steve: Well I don't want to marry you either!
Miranda: Then what are we doing?
Steve: No. Especially not right now I'm not.

Why don't we just sit around and wait for a stork?