Watching the video, I couldn't fathom, I really couldn't guess. When Michael had already touched her most private part, why was she still pretending to sleep?
Why didn't she wake up and slap Michael as a lesson?
Maybe her heart was in turmoil, unable to decide what to do. Maybe she didn't want to ruin the close mother-son relationship they had painstakingly built. Perhaps she didn't want to hurt Michael, who was healing emotionally.
Or maybe Michael was providing her with a unique psychological thrill, and she was lost in the forbidden pleasure. Perhaps her reason was already shattered by her sexual desire.
Or maybe ever since she "accidentally" saw Michael's impressive manhood, she had been curious to experience it.
My heart was as chaotic as Betty's in the video, but what could I do?