There could be various reasons why someone might tell another person that they are deeply in love with them and then disappear without an explanation. Some possible explanations could include:
Fear of commitment: The person may have realized that their feelings were stronger than they were ready to handle or were afraid of getting too emotionally involved. As a result, they chose to distance themselves to avoid facing the challenges of a committed relationship.
Emotional immaturity: Some individuals may not have the emotional maturity to handle their own feelings or navigate a romantic relationship. They might resort to making grand declarations of love without fully understanding the implications or responsibilities that come with such emotions.
Fear of rejection: Expressing love can make someone feel vulnerable, and the fear of rejection may prompt them to retreat and distance themselves from the situation to protect themselves from potential hurt.
External circumstances: There could be external factors influencing their decision to disappear, such as personal issues, family problems, work-related stress, or other unexpected events in their life.
Confusion or mixed emotions: The person might be going through a period of confusion or experiencing conflicting emotions about their feelings, which can lead to erratic behavior and ultimately pulling away.
Unresolved past issues: They may have unresolved emotional baggage or past traumas that prevent them from fully engaging in a relationship, causing them to retreat when things become too intense.
Lack of genuine intentions: Unfortunately, some people might use declarations of love to manipulate others or achieve their own short-term goals, without any real intention of forming a meaningful and lasting connection.
Regardless of the reasons, it's essential to remember that everyone's behavior and motivations can be complex and unique. While it can be painful and confusing to experience such a situation, it's crucial to prioritize your own well-being and emotional health. If someone disappears without an explanation after expressing love, it might be a sign that they are not emotionally available or ready for a committed relationship, and it's best to focus on healing and moving forward.