Him??

I really like an hot Italian/American guy who is 16(older then me) and he lives an hour away and he flirts with me and all and every time i ask him if he likes me he says "i dont know"

I mean i really really really really the Italian/American, he's hot, nice, funny, and can make my day better.
But i always think I'm annoying him because him and i only talk once or twice a day for like an hour or two.
(he's a really busy guy)
And i wanted him to come over and he wouldn't talk to me the day i wanted him to come over.
So i was so mad at him. I didnt tell him that.
I hate being obsessed with him!
He's all i think about!
I feel like i need to talk to him 24/7!
How do i get over the need to talk to him! and Be with him!!!?!?!?!?!?!
(he's single though)

Like i don't want to say i love him because i don't but it's just so hard to explain, I haven't felt this way since this once guy i knew last year.

(I'm actually debating whether to text him right now or not)

And his sister hates me. His sister is my old best friend's new best friend
(if i do decide to text him what should i say that would make him text back?
Like i want to be flirty but Ive been told by people i flirt to much)

Help me please