Although others might answer the difficult questions. They definitely wouldn't be able to answer the most general questions like - what's her nickname, etc.
Even if they would have gone to that extent, they would definitely not have answered this question correctly. It's because Beatrice never told Katherine what that name was. However, Beatrice's other friends know it.
Katherine smiled in return.
Moreover, prior to all this, she could actually see resemblance between Brina and Beatrice.
The way Brina fooled Olivia and made her sweat, could, itself, tell how experienced Brina was in doing this.
It was like a cakewalk to her.
"I believe you. But a last question" Katherine said.
"All right, shoot it out" Brina said.
"Weren't you in a relationship back then? I mean, Noah told me that he was thinking to propose to you" Katherine asked.
Noah is Nickolas.
