I did everything society told me to do and still got shafted

I was a loyal boyfriend, I got married, I had kids, I spent decades in a high paying job to put food on the table, I spent 40 years paying into social security, only to have my wife leave me after 20 years. I am not allowed to see my 2 children who are under 18. I don't have enough money to retire after the divorce. I get to spend the rest of my days working, alone, with no family or love. This is my reward for being a good provider and doing everything that I was supposed to do.