I can offer some general possibilities that may explain such behavior:
Misinterpretation: It's possible that you might be interpreting their behavior as obsessive when, in reality, they are just showing a strong interest or attraction. Sometimes, intense interest can be mistaken for obsession.
Emotional Attachment: Your crush might have developed strong feelings for you, which could lead to more intense behavior. They might be struggling to manage their emotions, leading to what appears to be obsessive behavior.
Insecurity: Sometimes, when someone feels insecure about themselves or the relationship, they may display obsessive behaviors as a way to seek reassurance or control.
Past Experiences: Previous experiences, such as past relationships or personal traumas, can influence a person's behavior in new relationships. Past attachments or insecurities may resurface in the context of a new crush.
Lack of Boundaries: Your crush may not be aware of appropriate boundaries in expressing their feelings, leading to behaviors that come across as obsessive.
Psychological Factors: Obsessive behavior can be associated with underlying mental health conditions, such as obsessive-compulsive disorder (OCD) or attachment issues. However, it is crucial not to diagnose someone without proper professional assessment.
Personality Traits: Some individuals may naturally have more intense or obsessive tendencies in their relationships, which can manifest when they have strong feelings for someone.
If you are feeling uncomfortable or concerned about your crush's behavior, it is essential to set clear boundaries and communicate your feelings honestly. If the behavior continues and makes you feel unsafe or anxious, it may be wise to seek advice from a trusted friend, family member, or mental health professional for support and guidance.
Remember that relationships should be based on mutual respect, understanding, and consent. If you ever feel uneasy about someone's behavior towards you, it's essential to prioritize your emotional well-being and safety.