Not sure if this will help as I know things have changed a hell of a lot, but I had a boyfriend when I was 10. My Mum used to let him come over for tea after school and I would go to his house. There was nothing in it we were just friends really but at the time I felt really grown up having a boyfriend! I wouldn't worry too much. He'll soon get to a stage where he thinks girls are boring and the boys are much more fun to hang out with!
There's nothing wrong with young love, in my opinion. He's only 10, and it's very unlikely that he's found his future wife at this age. Besides, he sounds like an intelligent boy, aware that there are other things out there.