Dear pleasureprolonger,
First of all, let's dissect your friend's statement - does he mean that "sleeping around" with any and all females "deadens a person's sensitivity," or is he referring to sleeping with providers in particular?
In any case, I don't think it's as cut and dry as he makes it seem. Take someone quite famous - Warren Beatty for example. In his day, he banged chicks left and right, certainly qualifying for "sleeping around." But when the time came, he married Annette Bening and they're now going into their second decade of a rather happy marriage. And he's just an example, there are zillions of others who have done the same.
Now, having exclusively PAID sex may be a little different. In a case of having almost immediate access to women, someone may end up having expectations that can never be fulfilled by non-paid relationships. But what came first, the chicken or the egg? Was it a case of someone incapable of intimacy in the first place, or did the repeated exposure to paid sex cause the individual to gain a warped sense of love and commitment?
In my observation, the hobby itself doesn't make a man leery of intimacy. If it were so, thousands of men would not be able to have intimate relationships with their wives while still engaging occasionally with extracurricular sex partners. The reasons for this type of engagement are many and I don't need to go into them in this posting. But it may be that a man who already has problems with intimacy finds that the hobby fulfills most of his needs and therefore refrains from doing what society tells him to do - find a permanent partner and stick with her. I don't know about your friend, but being partnered is not necessarily for everyone. Some people actually PREFER being single and switching sex partners frequently. Maybe these people have intimacy with platonic friends, family or even pets?
I really believe that it's a bad idea to generalize and speak judgmentally as your friend has done. As to your own needs, ask yourself why you hobby and what the difference between a paid or civvie relationship would mean to you. What are the criteria for each? What can you live with, not live without [hope that makes sense to you]?
If you're so worried, then stop hobbying and see where it leads you. If you find your "LT partner" within a week or month, then come here and tell us. But my bet is that it won't make a difference, unless you're trying to make a provider into something she's not meant to be, like a surrogate girlfriend, for example. Of course, if you are obsessing over the hobby and elevating your encounters into substitutes for relationships, then take a step back and reassess. If it's just to get your wick dipped so that you won't go crazy, or even just to get some physical warmth from another human being, then it probably won't matter much once you fall in love with a civvie. Just watch the unrealistic expectations - they'll kill the deal every time, whether with a civvie or a paid provider.
Sex and commitment are two separate issues,
The Love Goddess