Question Regarding Practice Exam 1

Continuing the discussion from The most striking thing about:

I am having a bit of trouble with this question as well. For the second blank, I understand why the answer cannot be flout. However, why is it not follow? One of the explanations of seen is that "follow’ and “betray” can’t go together. But isn’t that the exact point of the sentence? To state that he does not follow certain principles and betray them at the end. My apologies, still confused.

Thank you!