"I have a growing investment portfolio, some real estate, and a stable life that affords me anything a middle class man would want."
Marry me please and keep getting more rich!
Jokes apart, I do understand your problem. May be you could see a shrink. But, unless you learn to find happiness in your own self, you will never find lasting happiness and peace. Every external object or person you try to find happiness in, is perishable and liable to change. So, you must learn to be happy on your own, without depending on an outside source. It takes a long time to achieve this. So, do not despair if it takes a little longer. We are here for you.