I am coming to understand why this thought even crept into my head.
I'm lonely, I'm scared, I'm devastated, and I'm angry and wanting revenge.
All of these are negatives. Revenge and anger solve nothing and create problems. The fear, the loneliness are things that are wrong with me that I need to fix about me -- regardless of where I'm at in my marriage.
I know I won't be dallying myself. Thank you to all who posted to help me sort these feelings out.