The situation you described could be an indication of what is commonly known as "fear of intimacy" or "commitment phobia." It is not related to a specific sexual orientation but rather an emotional and psychological response that can occur in individuals regardless of their sexual orientation.
Fear of intimacy is a complex emotional issue where a person desires a romantic relationship and connection with someone but becomes uncomfortable or loses interest when the other person reciprocates those feelings. This fear may be rooted in various underlying factors, such as past negative experiences in relationships, attachment issues, low self-esteem, or fear of vulnerability and emotional closeness.
Individuals with fear of intimacy may feel overwhelmed or anxious when a relationship becomes more serious, and they might instinctively withdraw or distance themselves from their partner as a defense mechanism to protect themselves from potential emotional pain.
If you find yourself experiencing this pattern, it could be beneficial to explore these feelings with a therapist or counselor. They can help you understand the underlying reasons for your fear of intimacy and provide guidance on how to develop healthier emotional connections and navigate relationships in a more fulfilling way.
Remember, seeking professional support is a positive step towards personal growth and forming more meaningful and satisfying connections with others.