[Edison Carter]

Susan here-- In the search for depth, breadth and meaning in her actions, have you simply considered she's a nitwit who got a cheap thrill from fucking some guy ? Again, let's emphasize that she's a nitwit incapable of really understanding her own actions. Write an apology letter ? Puhleeeze. You're just trying to get some control and understanding from someone unwilling/incapable of either. I still hope you work it out, but it may be less complex and more ridiculous than you think.