Bee, sometimes you find that the person you loved and trusted has changed. What's the old Chinese saying? We are a new person every five years.
I know that my wife's ex stepped out on their marriage several times, and after 24 years of marriage, she gave him an ultimatum: His choices were to go to marriage counseling or get divorced. He walked. I stepped in to offer my sweetie a shoulder to cry on and friend to listen while she vented. Those "crying on the shoulder" times led to cuddling and, well, one thing led to another... you know how that goes.
Less that a year later he married the home-wrecker. But... less than five years later, he divorced HER because she wanted kids and he didn't. Or so the story goes. Now he's on his third wife, and SHE has her claws in him so deep that he will NEVER divorce her. Because she will take him to cleaners he didn't even know existed. Look up the word "shrew" in the dictionary and you see her picture.
Meanwhile, my dear wife and I have found stability, love, and committment. We both changed, too, but I think for the better. So the divorce helped my wife find new possibilities as well. To be honest, I cannot look on divorce as a negative thing long-term even though it might be very upsetting short-term. You see, the two most important women in my life came to me through divorce. I am my wife's second husband and my mothers son by HER second husband.