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It's a given that you'll become angry with your spouse at some point in your marriage. Why, because they might not have lived up to your expectations. The first step in processing anger is to admit that you are angry.
Are you attempting to improve your marriage by trying to change your spouse? Matthew chapter 7 tells us not to judge others. Examine yourself and see if YOU are the one who needs to change.
What is the definition of an ideal marriage? An ideal marriage is one in which a couple is committed to encouraging their spouse to be all that God created them to be.