Notice at the 19:15 point RP is talking about Buell Frazier and asks if Buell Frazier is in the audience .... The camera focuses on Frazier immediately so apparently RP already knew that Buell was in attendance, but she pretends to be happy that he is there.... It's very obvious that Buell Frazier DOES NOT like RP. He does not stand up nor does he smile.
I was there. Ruth had nothing to do with the camera crew filming on behalf of the Irving Library. In other words, for those who need me to explain in more detail, just because a member of the camera crew knew Buell was there did not automatically mean that Ruth knew for sure whether or not Buell was going to attend (until she saw him).
Here is a pic I took of Buell posing with Ruth with his arm around her....
