Friendship actually is the F-word that needs the most attention if you want to retain or regain a happy marriage. The single most distinguishing characteristic between happy couples and distressed couples is that happy couples are more likely to be best friends and actually treat each other as best friends would.
For most married couples, the question of when to have children comes up quickly after the wedding. Some delay it by a few years, some start right away, but for many couples, having kids is on the agenda. But before taking that leap into parenthood, you should know that your marriage changes forever, and there's no going back.
Emotional maturity is an essential ingredient in creating a stable, loving, and long-lasting relationship. It does not come naturally with age. Couples who have been married 30 plus years and are still locked in a power struggle have not yet achieved emotional maturity as they are often stuck in the blame game and the cycle of reactivity.