It is better to be happy at first sight than to stay together for a long time. We all know this simple truth in life. We tell others this and persuade ourselves this way. We can't bear it. We can't resist the new love we meet in life. Just like the doll we loved when we were children, we will temporarily abandon the doll we originally loved because of a new toy. No matter what the new toy is, it doesn't matter whether we really like it. For us, the charm of a new toy that attracts us comes from its novelty and people's innate curiosity. It may not have much to do with whether we like it or not. The abandoned doll that was originally irreplaceable is like us abandoning the most familiar person around us. Favorite friend or that dearest person.