I have heard a saying: "The most beautiful appearance of love is that two people will not feel embarrassed even if they are silent." There is nothing wrong with this, but it describes a state and a result. And couples want to achieve this state and result, not only by innate fit, but also by the efforts of both sides. In love, the best way to increase the emotional intimacy of both parties is actually five words: play together. Playing together here doesn't mean being together all the time, but we can play together and have a common language. Even if you don't talk, you know what the other person is thinking.
Everything needs novelty, including love. You should give each other unexpected surprises from time to time, so that love can be sweet forever. Don't let her rely on you too much, or she will think you are her brother or elder, which is terrible. Deepen each other's understanding, keep some of his (her) habits in mind, and give care from time to time, so that you can engrave your own shadow in each other's hearts. In short, I think the shelf life of love needs our joint efforts to improve ourselves and make ourselves more attractive, so as to inject "preservatives" into love and make it never expire! Therefore, in fact, seriously managing love is to extend the shelf life of our love.