Author is going to flip the roles. Tokimori will have lots of energy. Sugawa will have little to no energy. Tokimori will be picking up after Sugawa. Instead of the date being ruined, she'll realize just how much effort Sugawa puts into Tokimori, and she'll love him even more.
Ah... who am I kidding. This is too big brained for this manga. Either that or it's going to be axed.