1. Emotional residue: Men find it difficult to forget their exes, often because their past emotional experiences are profound and genuine. Those shared memories and experiences of joy, anger, sorrow, and happiness leave a deep imprint in their memory, which is difficult to easily erase.
2. Unfinished plot: Sometimes, a breakup may not be the result of both parties voluntarily or completely resolving all issues. There may be unfulfilled wishes, regrets, or unresolved conflicts, which can keep men thinking about in their hearts.
3. Habits and Dependence: Long term relationships can form habits and dependencies, including emotional dependence, tacit understanding of lifestyle habits, etc. After a breakup, the sudden interruption of these habits can make men feel uncomfortable and empty, leading them to miss their ex even more.