The relationship between people is essentially a dynamic matching of values, not simply maintained by emotions. The so-called distance is often not about someone changing, but rather that each other's needs no longer align, and the value they can provide is no longer equal. Whether it is family, friendship, or love, long-lasting relationships require "mutual need" and "relative balance." Unilateral demands or one-sided efforts will cause relationships to become unbalanced and difficult to sustain. Instead of struggling to maintain all relationships, it’s better to improve oneself first, making oneself more capable and valuable, while also learning to screen relationships and maintain boundaries. In this way, the right people will naturally stay, and those who are not suitable can leave with ease. The ebb and flow of relationships is normal; the key is to view it clearly and focus on personal growth.