when do you know it is time for a divorce?

Well, I think that when a person gets married and made those vows, it is "til death do us part, for poorer or for richer, in good health and in bad." It means that divorce is not an option. Divorce will never do good to the people involved, to their kids, and to their loved ones. Therefore, for those who are thinking of getting married, if you have an opt out after marriage, then I think not to get married at all and stay single for the rest of your life.