You still have hope, @jinxu, your ex is just your ex-girlfriend. You are not married yet. LOL Heed everybody's advice.
OMG!!! The bid/ask spread was THAT lucrative in those days in the pit that you can just make money by playing inside them??!! My gosh. I have never experienced that in my whole entire trading career having started with the electronic trading. I have been born too late.
One thing I want to point out is if you read "Coming Apart" by the same guy as wrote "The Bell Curve", it's very clear that your chance of divorce is decreased drastically if: 1. You and your spouse don't have divorce in your history, or family history 2. You are college/university educated Just these two factors reduce the likelihood to 20%.
You forget that sometimes he leaves her. She gets fat. You can do better. You pay her to leave. If you have a professional job - the payment, ironically, comes out roughly to hooker rates. One "service" per night, for each night of the marriage. Do the math. Everything is a trade.
But in (day)trading I can calculate my future loss and put a stop. In a divorce that will not work. I also know my expenses (commission and fees for the exchange), while the expenses in a divorce are always unpredictable but for 100% sure much higher than imaginable. The risk/reward ratio cannot be calculated but is horrific. If you apply the rules that a good trader should respect, you never marry.
Your stop is your net worth. Divide that by your estimated sexxual encounters. Compare it to hooker rates. There's your relative value trade.