I love these great bits of advice from Elder Dallin H. Oaks in his talk "Divorce." (Ensign, May 2007, 70-73)
"I strongly urge you and those who advise you to face up to the reality that for most marriage problems, the remedy is not divorce but repentance. Often the cause is not incompatibility but selfishness. The first step is not separation but reformation. Divorce is not an all-purpose solution, and it often creates long-term heartache. A broad-based international study of the levels of happiness before and after “major life events” found that, on average, persons are far more successful in recovering their level of happiness after the death of a spouse than after a divorce. Spouses who hope that divorce will resolve conflicts often find that it aggravates them, since the complexities that follow divorce— especially where there are children—generate new conflicts.
Even those who think their spouse is entirely to blame should not act hastily. One study found “no evidence that divorce or separation typically made adults happier than staying in an unhappy marriage. Two out of three unhappily married adults who avoided divorce reported being happily
married five years later.” A woman who persisted in an intolerable marriage for many years until the children were raised explained: “There were three parties to our marriage—my husband and I and the Lord. I told myself that if two of us could hang in there, we could hold it together.”
Don’t treasure up past wrongs, reprocessing them again and again. In a marriage relationship, festering is destructive; forgiving is divine. Plead for the guidance of the Spirit of the Lord to forgive wrongs, to overcome faults, and to strengthen relationships.
President Spencer W. Kimball taught: “Two individuals approaching the marriage altar must realize that to attain the happy marriage which they hope for they must know that marriage … means sacrifice, sharing, and even a reduction of some personal liberties. It means long, hard economizing.
It means children who bring with them financial burdens, service burdens, care and worry burdens; but also it means the deepest and sweetest emotions of all.”"