I'd tell you your recognition of "teen love" speaks to an uncommon wisdom for your age. You oughtta be proud.

At any rate, yes, it could just be him being a guy. Men and women communicate slightly differently, and it could wholly be possible that your "disinterested" is simply his "I understand A, therefore here is B." Does that any sense? I struggled with how to word that.

If it bothers you, why not ask him about it? I'm sure he'd be willing to talk to you about it.

Also, Sunflower gave good advice that I hope you'll take to heart. I hope things work out for you.