We have a wonderful teaching, so simple yet so profound: A man is shaped by his deeds. When you act in a certain way, you become that way. Your conduct has an impact on your emotions. That's why I spoke about those little things — giving your spouse your wholehearted attention, learning Torah together, extending kindness, giving pleasure to each other; those things will cement your relationship and enable you to become one. Act like one, and you will become one; act like loving, kind friends, and you will become loving, kind friends.
— Rebbetzin Esther Jungreis, The Committed Marriage