Honestly, I don't think you will EVER find a "satisfying" marriage if the "requirement" is for sex every day, oftentimes multiple times a day, and when you go through a SMALL drought you jump ship and start having sex with other people. Yes, you have a high sex drive, but at the same time you are CHOOSING to cheat on your partner and have sex with other people. Even high sex drive partnerships need to be able to weather the rough times or the relationship is doomed to fail. I'd say you need some sort of therapy in order to get to the root of the matter. But no, this isn't the fault of just an "unsatisfying marriage" as you've had this pattern throughout your life.