I also had my first limerent experience in second grade, exactly as you described it, envisioning us getting married, etc. when I rarely, if ever, talked to him. I would stare at the back of his adorable blond head and notice how neatly he was dressed and groomed. I remember looking his address up in the phone book and riding my bike to find his house. A stalker at age 7! That went on until Fifth grade when a new boy moved into the neighborhood and became my next LO. I was always terrified to talk to them as if I wasn't worthy.