I don't know if I would call them "crushes", but I tend to become immensely fascinated by a person after first meeting them, and will gush about them on and on for weeks, until I meet another new person who takes over that part of my brain for a little while. My husband found this difficult to deal with at first, because he thought I was falling in love with these people, but now he is used to it and doesn't feel threatened anymore. In fact, he says he is inspired by my love for and intense interest in my friends, which is almost always from a distance, as if I am studying them.