Another bit about logic: T'Pring couldn't have known that Spock would bring any friends along, so she must have changed her plans on the proverbial dime when she saw Kirk. After all, Spock might have killed Stonn. So this was a way to get Stonn without risking his life - something he
didn't reason out as quickly. Oh, how he makes her pay for that insult to his masculine pride in the fanfiction!