In a marriage there are some things you do ignorantly, innocently and sincerely but you still trap unpleasant results. There is a way that seem right unto man, but the end therefore are the ways of death ( proverb16:25). That scripture affirms that you can die in your sincerity, you may feel a way is right , a method is tested and proven , a procedure for marriage is result oriented, yet it can lead you into difficulties, despair and death .
There are two distinct individuals and God has different plans for each of them , God has a plan for everyone of his spirit begotten children. You must seek and know what plan God has for you and your partner, you can not have a Berger plan for your life.
"Forgiveness" this the key word in every marriage, every family must apply , if your partner don't forgive easily be the one that will forgive easily, he or she will learn from you.
When you forgive your wife or your husband of the wrong deeds , believe me God will surely forgive you of your sins. But in a situation when you said over your dead body you will not forgive, my friend you are out of the track. God will not show you mercy.
You are actually right forgiveness is the key most especially to forgive and forget