Women spend a huge amount of time, it appears, wondering why the man they're interested in is not behaving the way they want them to.
The answer to that is simple: he just isn't and there is nothing you can do about it. Accept it.
If he tells you he's not interested. If he's not calling. If he's skirting the issue, saying he wants to be friends . . .
And you keep pushing!
He's already told you.
He's not interested.
Respect his wishes.
You would not want a guy to force you into a relationship with him. You would not want to be hassled with why you didn't call him, why you didn't do this or that, corned to explain your every word, every action -- so don't do that to him.
Whatever he says, hear it. Honor it. Respect it. And behave accordingly.
It will make life easier for you and for him.