Why MUST you confront him? You are 17? Can't you just hang out?
This is so the wrong forum for that ideology. Dial direct quit wasting your precious time here. Handle your business!
you answered your own question. Tell him he is so confusing and you need to know if your are wasting your time with him.
Theres several options..Ask it straight up "What are your intentions?"
Or pull away a bit and see what he does next....Or ask someone in between.
Or forget about intentions and just hang out when you want to without any expectations.
Or just give it more time without devoting much effort at all in that direction.
Or ask for it in writing if they might be a bit manipulative ,which could be done via text message etc..
Good conversation.Sit him down away from other people and talk......ask the hard questions.
It sounds like he won't answer you if you ask him. I would say that if you can make some trouble for him and see if he is strong enough to deal with it then he might be okay.
Play a trick on him and see if he can handle a little curve in life.
ask him straight about he's intentions x
just tell him you like him alot and would like to no if he feels the same way and can you both go to the next leval x