As a family law attorney for many decades I agree with much of what Rav Miller said. Our CT courts require couples to undergo marriage counseling before granting a divorce.
That said, I have convinced the Chief Judge in our GA to permit that counseling to be performed by a ‘religious authority’ as opposed to a Pyschologist, LCSW or other Therapist.
I counsel clients that divorce should be the last resort.
However, sometimes it s necessary for the safety of a spouse and/or children. When one spouse has an addiction problem that has not been solved despite repeated treatment, or is physically violent to the other spouse and/or children divorce may be the correct answer…along with protective, support and custody orders.
I have had non-Jewish clients divorce and then remarry later. As a Justice of the Peace I have performed a number of these ceremonies.
I have only had one Jewish client (that I am aware of) who later remarried his ex wife and that was more than 25 years later when the 2nd marriages had both ended in divorce and the original couple kept seeing each other at family simchas and realized they belonged together. The male felt that he was pushed into divorce by his overbearing parents and the were no longer around to interfere with the remarriage.