I have come to realize that a Dom/ sub relationship is more like vanilla dating than not. This is something that I haven't really encountered much personally since becoming a dominant. As a Pro, I haven't had to worry too much about making an emotional connection or risking much of my own. For me, play has been fun and mainly kept as a business transaction. I am friendly with clients and there are some that we have had a long lasting business relationships. They are great but not overly personal.
Lately I have come to a place were it would be nice to have a devoted submissive that does not have to do with business. This is scary territory. I have to give quite a bit of emotional investment. I also have to accept that I may not get anything back from this investment. I may loose quite a bit. It is awkward and feels so much like dating that it is almost comical.
What are the expectations? There is always that awkward time of figuring that out just like any other relationship. This is frequently more complicated because there are so many more factors to consider. Of course normal vanilla interests are important, then there are the kink things to consider, there is also what kind of a D/s relationship is this going to be. Is it a 24/7? Is it a platonic? Is it monogamous or poly? How much of an emotional investment does each party want to put into it? All of these things require a monumental amount of communication, dedication, and honesty. There will be growing pains, disappointments, and hurt feelings.... But there is also more fun, rich, fulfilling, and complete relationships.