Sunset Shimmer doesn't remember what happened at the last night's party. And worse yet, she can't remember just which one of the Twilight's she slept with
On Valentine's Day, Twilight pays her Canterlot High friends a visit and finds out that they have all thought about sleeping with her. She is not okay with this.
Minuette's manipulation of time allows her to do a lot of things. Asking Sunset Shimmer out on a date isn't one of them. Worst part? No matter how many times she rewinds... it's still Tuesday.