Its probably just instinct of course he likes you but he could be attracted to this girl and like you too. Don't be mad ask him about it and discuss it and see how it goes. GOOD LUCK!
Ok, I'm 13 and I dated a 16 year old. We still remain contact with each other and even when I tell him I want to be friends he still pursues me. I like him a little still and I broke up with him...