Dreams about people from your past, especially those who have caught your attention, can often reflect your current feelings or desires rather than an actual longing for that person. In your dream, the boy represents a part of your life that you may be reflecting on or exploring. His nonchalant behavior suggests that you may feel unnoticed or undervalued in certain aspects of your life, possibly in social situations or relationships.

Following him around and trying to get his attention might symbolize a desire for validation or connection. Even though you don't have strong feelings for him, your subconscious could be using this figure to explore your own feelings of wanting to be seen or appreciated.

The part where he asks for another chance but you decline could signify your desire for independence or self-empowerment. It might suggest that you are currently focused on yourself and are not interested in revisiting past relationships, even if they were never fully developed.

Overall, this dream might be encouraging you to think about how you seek attention or validation from others and to consider your own self-worth outside of others' perceptions. It could also be a reminder to focus on your current priorities and relationships that truly matter to you.