Care and feeding of a sub continued

Alright, we have a Master and a sub, he holds her power and uses it to create pleasure and fill her void, her empty spot.
But, there is still an emptiness. What does she do?
She might not realize this is the reason for that restlessness she feels, she may not know herself well enough.
She may feel it but chooses to "live" with it. After all, he is the Master, and pleasing him should be enough. She can live with a little empty spot and maybe fill it with a hobby. ( We can talk about that later)
She may decide she can't live with it, and waits for her Master to somehow recognize the need and "fix" it. After all he knows everything right? He can even read minds.
She can talk to him about it. Open her heart and soul and try to tell him how it feels inside, what she is missing.
 She can only do this if she knows what she needs and trusts her Master completely. Together, they can work to fill her completely and through that, increase his dominance over her.

Let's look at it from the Dom's view. He does not know his sub well , and never notices the restlessness. They muddle along, fairly happy and never knowing what they could have.
He may notice some behaviors that are troublesome. He thinks about it, and is not sure what it means. As he thinks about it, he thinks maybe her submission is slipping. He sits back and decides to wait and see what happens.
Or his sub comes to him and opens her heart asking for his help. What can he do? He has a decision to make at this point. He can ignore her pleas, and tell her to stop complaining. He notices the decrease in the power exchange but believes it is her holding back. He becomes unsatisfied with her and begins to withdraw from her, starting the cycle. The more he pulls away, the emptier she feels and the more she tries to get the increasing void filled.

Remember, if you are hungry it is hard to focus. Focus is what the Dom is craving.

Subs? are you expecting your Master to read your mind? Is there something in you that think this empty feeling is good for you? Are you taking control from your Master by not allowing him to use your power?
Masters? are you expecting the sub to take care of it her self? Do you think that ignoring it will make it go away? Do you tell her that it is her fault?

Ask yourself the hard questions. D/s is not easy. It takes a lot of time and effort. And the rewards are so awesome and powerful.