You should not bail on planned activities.
Chris and Zoe had planned to go see a movie and while talking on the phone Zoe asks Chris if they're still on for tonight.
Chris wants to respond to Zoe's question.
Chris tells Zoe that, of course, he'll come, and he's been looking forward to seeing the movie with her.
Chris tells Zoe that, actually, good thing she asked because he really doesn't want to go anymore.
Zoe is delighted that everything is still going according to plan, and she expects to have a fun night.
Zoe is angry that Chris is cancelling plans at the last minute with no explanation and now her evening is ruined.