Where you are correct that it should be exclusive, that would fall under the term "committed". Dating itself is only exploring, whether the two of you, have that ability to achieve the full relationship. During that dating period, you cannot expect any change to her occupation, nor decide you have to support her, as a sugar daddy. The rules would be the same as any person, you would "date". At some point, that discussion, would come up, but only because you are both thinking, you do want a full commitment. Not much different then, any other relationship, that started as interest, was explored, and found to be the right one. It is during that dating period, you both discover, if there are reasons, it would not work. No different then dating someone outside this particular occupation.