"Divorce" is out of the question. It never comes up in any discussion. There is always a solution short of that. That said, some things cannot be tolerated: any form of abuse, serial lying, serial infidelity (which is the same as serial lying), unrepentent addiction of any kind. Beyond that, two reasonable people can find a way to face anything. My husband and I are married 34 years, and there were many years I didn't think we'd make it. But we got through the roughest times, and there was a great reward on the otherside. There is nothing so valuable as a long shared history with another person.