Have a thing for someone

Having a thing for someone often means you have a strong attraction or affection towards them, which can encompass romantic interest, admiration, or even infatuation. This feeling can lead to excitement and daydreaming about the person, as well as a desire to spend more time with them. It's a common experience that can vary in intensity and may inspire you to express your feelings or make a move. However, it's essential to navigate these emotions thoughtfully, considering the other person's feelings and boundaries.