Love as distinct from “being in love” is not merely a feeling. It is a deep unity, maintained by the will and deliberately strengthened by habit; reinforced by the grace which both partners ask, and receive from God. They can have this love for each other even at those moments when they do not like each other; as you love yourself even when you do not like yourself
In too many marital conflicts, we work too hard at winning the argument and too little at winning the heart. You can express your feelings and thoughts, even share criticisms and complaints, but the end goal of marital conflict should be care for your spouse’s soul, not trying to rack up the most points. Seeking to win is not love.