From the perspective of story creation, Xiao Li's discovery after consulting his diary can have many possibilities, but it should be emphasized that: **In reality, invading the privacy of others is illegal and against ethics.**. The following are several reasonable speculations starting from the fictional plot： --- ### Possibility 1: Misunderstanding in good faith -**Discovery**: The diary records that the roommate is secretly preparing a birthday surprise** (for his girlfriend/family/Xiao Li himself), or traveling to and from the suburbs late at night to make up classes for poor students, concealing the itinerary because he wants to keep a low profile. -**Turning point**: Xiao Li fell into guilt for peeking, and finally realized the importance of trust and communication when the surprise was announced. --- ###Possibility 2: Personal dilemma -**Discovery**: The diary reveals that roommates are facing **mental health problems** (such as anxiety, depression), and going out at night may be to deal with emotions alone or receive regular psychological counseling. -**Profound meaning**: The story can be turned to call for attention to the psychological state of the people around you, while criticizing the violation of privacy in the name of "caring". --- ### Possibility 3: Special identity -**Discovery**: The roommate is an online writer/comic artist who works in a 24-hour cafe at night; or participates in an offline mutual aid group because of his status as a sexual minority, but is not ready to disclose it. -**Revelation**: Show diverse values and emphasize the need to respect the choice of space by others. --- ### Possibility 4: Crisis foreshadowing -**Discovery**: The diary records that the roommate was involved in **Internet fraud/MLM organization**, participated in brainwashing training at night, and revealed contradictions and fears between the lines. - **Warning**: Guide the story to "how to legally help friends in crisis", rather than prying into it privately. --- ### Reminder of key values： 1. **The right to privacy is inviolable**: Regardless of the motivation, peeking at the diary constitutes an injury to the dignity of others and may violate Article 1032 of the Civil Code. 2. **Communication is better than suspicion**: Xiao Li should first express his concern as a friend, rather than choosing a method of distrust. 3. **The truth may not conform to imagination**: People often amplify their doubts due to subjective speculation. In reality, more "secrets" are related to personal growth rather than malice. It is recommended that Xiao Li naturally increase his understanding through common activities (such as cooking and exercise together), or euphemistically express "I have seen you very tired recently, do you need to talk?" This is the solution to healthy interpersonal relationships.