How do I tell him he's slacking, He's not even my boyfriend yet.?

So I've been having a 'thing' with boy X and i really like him. But i feel like I'm putting more effort in our 'thing' than he is, i text, call, send videos, audios and Skype him. He calls at times but i feel I'm doing more. What should I do, tell him or what? We are'nt even going out yet.
How do I tell him he's slacking, He's not even my boyfriend yet.?
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