How do you tell a woman you really like her without giving her too much power?

You know what I'm talking about. I mean I get timing is important. Telling her too early you'll scare her away. But even if she feels the same way she can decide, "well now that I got him hooked I can take him for granted".
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No women responses, lol. Apparently women don't know how to have this communicated to them.
How do you tell a woman you really like her without giving her too much power?
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