Plot Hole?
One thing that bugged me was the scene where Gale explains how his semen ended inside Laura Linney's character.
Well, why all that "sentimental" moment in the backyard of her house if they knew that it would be the key evidence to incriminate Gale?
It's very hard do believe (even for this movie) that they have planned everything in the next morning, in the day she killed herself!
And if Gale was manipulating the truth when he was reporting his life to Bitsey, it will open the possibility to believe that he could be lying about everything that he told to her during the interviews (and i think that this wasn't intended).
So, it may be a plot hole? Any other possibilities?
Your mother cook socks in hell!