That’s way too wordy.

Go make the dunk. Give her a moment of disappointment, then come back and say. “I don’t miss dunks, or dates. How about [local restaurant] at 6?”

Then you 1. Don’t miss a dunk in front of the boys and show your principles. 2. Get the date. 3. Let her save face - you’re not going on a date with her because you lost a bet, but rather because you like her.