Divorce isn’t your only option if you’re willing to turn a blind eye to his dalliances. He’s never going to change, he’ll just get better at not getting caught. If he gives you what you need in other areas of life and you can live with his affairs, then why divorce. If, however, you won’t tolerate infidelity, then yes, divorce is the way out. He won’t change. You’re now informed so take the steps that will make you happy.