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That decision would come up when you figure out what is it that you are getting in return. Do you feel desired, does it satisfy a physical/sexual need versus emotional one, would you like to be monogamous or experimental, would you like to be respected or used by the men you come in contact with etc.
You are considered an adult now (you can chose whom to have sexual relations with and when/how often) Once you decide what is driving your behavior, then you would be able to make the right choice (or the choice that makes you feel at ease and content with your decision)