The meaning of the song "I Can't Be Your Boyfriend" by Koi is about a man who is not interested in settling down and committing to a serious relationship. The song talks about how the man enjoys the attention and affection from women, but he is not looking for anything more than a casual fling. He emphasizes that he doesn't have time for a serious relationship and that he can't be anyone's boyfriend or husband. The lyrics also mention how the man is focused on his own desires and isn't looking to emotionally invest in anyone. The story of the song revolves around the man's interactions with different women who are interested in pursuing a deeper connection with him. Despite their efforts, he repeatedly expresses his disinterest in anything long-term. The song conveys the man's mindset of prioritizing his own freedom and avoiding commitment at all costs. Overall, "I Can't Be Your Boyfriend" portrays a character who is unapologetically non-committal and focused on his own enjoyment without considering the emotions of those around him. The lyrics emphasize his refusal to be tied down or take on the responsibilities of a serious relationship.