Text completion (...refusal to compromise after having initially agreed...)

GRE Verbal Problem Solving
1

image
image1920×1080 175 KB

  1. How is “betray” = “reveal” here?
  2. Also, can uncertainty be chosen on the new GRE if it were an option? I’m thinking that Wilson is uncertain as he goes from “agreeing to compromise” to “refusing to”.
2

Wow!! I’m self answering. :joy:
Here is the answer: https://youtu.be/oDr4pgkkabc
I still need the answer to second question though.