He was too busy to actually notice the Doctor, falling into some kind of horrible self-prophesied trap, given that he was so thrown out of the moment that he immediately did exactly what he had done so many years ago -- he rushed through the moment and he watched Kayla take his words with disappointment, leaving just as she had ages back.

Chase had enough time to spin around, exhale, and lean forward as he rested his forehead against the cool counter, in sheer disbelief and sudden panic and regret about what he just did. "Shit," he muttered.