I agree with you in part...I am not a slut as many men would see, I am however my Masters slut.
This does not in the least mean that he treats me like I don't matter, just the opposite actually, he treats me with respect, adoration, he is the most caring man I have ever known. All these things are the reason I am his. Like you, I will not submit to just anyone, only the one who treats me right deserves the same in return.
I don't know your situation, it sounds like you have been meeting some wannabe's, maybe you have yet to meet your true Master, I believe that when you do you will be happy to be his slut and only his
Be patient, never lose your sense of self, and most of all don't settle for less than what will make you happy.