Rarity can be very patient. Part of getting what you want the way you want is biding your time and bringing other ponies around to see what should be obvious. Rainbow Dash was never very good at seeing what should be obvious. But even Equestria's densest mare got the hint eventually.

Rarity is very patient. She keeps her calm as a lady should. Even if their date was to start two hours ago. Why she ever said yes to that scruffy boor of a pegasus is anypony's guess.