You should be honest and straight forward with people.
Kit and Leo were planning a camping trip, but Kit would rather spend the weekend with his girlfriend.
Kit doesn't want to disappoint Leo, who was looking forward to camping.
Kit tells Leo that his girlfriend is in town, and he wants to spend time with her that weekend.
Kit goes on the trip with Leo, but ends up spending a lot of time on the phone with his girlfriend.
Leo suggests they both bring their girlfriends on the camping trip, and everyone has a good time.
Kit's girlfriend is mad at him, and Leo feels that Kit was being distracted from their activity.