First of all, it's important to understand that developing feelings for someone and the way we process emotions is highly individual and complex. There is no right or wrong way to experience attraction or emotions for someone. People vary greatly in how they form connections and attachments to others.
What you're describing is just one of the many ways that people experience attraction and develop crushes. Some individuals may find themselves easily attracted to multiple people and have fleeting crushes, while others may take longer to form deep connections and have more long-lasting crushes or feelings for someone.
There are several factors that could contribute to why you might have a tendency to develop long-lasting crushes:
Emotional sensitivity: Some people are more emotionally sensitive, and their feelings tend to run deeper and last longer.
Personality traits: Certain personality traits, such as being introspective or having a strong sense of loyalty, can lead to deeper attachments to individuals.
Past experiences: Your past experiences, particularly in relationships or attachments, can influence how you approach forming new connections and how you process emotions.
Attachment style: Your attachment style, which is often formed in early childhood, can play a role in how you form relationships and handle romantic feelings.
High standards: It's possible that you have high standards or specific criteria for developing romantic feelings, making it less likely for you to have frequent crushes.
Feeling like you are "stupid" because of how you experience crushes is unnecessary. Remember that we all have our unique ways of experiencing emotions and forming connections with others. It's essential to be kind to yourself and avoid self-criticism based on how you process your emotions.
If you find that your long-lasting crushes are causing distress or interfering with your daily life, it might be helpful to talk to a mental health professional or counselor. They can provide guidance and support to explore your emotions and help you better understand yourself. Remember that seeking help is a sign of strength, and it can lead to personal growth and a deeper understanding of yourself.