He can't wait to get free. He didn't want to stay for an extra hour saying he as to get up for work in the morning. For not taking the extra hour of punishment she hooked him for his January appearance on the air where it would be harder to say no.
Assuming 1) She still has a show and 2) something doesn't "come up" on his end? If he is upset, I think he'd say yes to get her to let him go, then cancel later on.