Minnesota
I don't think anyone does this without getting attached in one way or another. I think communication is a key component though. As long as you communicate both ways, then all parties can keep themselves in check. I can't do this without getting attached. There's no way I could please a woman like I do without a connection. 
But there are boundaries and you just need to respect them.
Accurate this response is, I thought I could be good with putting how I think into words, but you managed to say it so perfectly for me especially these: "There are some here for whom this IS a deep expression of their real self, not a character they are playing. Their need to show you care and affection is a genuine need."
And: "If you are the kind of guy who can just enjoy it for what it is" "that you can love and be loved without the need to possess, to "have."
I find so many people in real world life, & sometimes even hobby-world that do equate love and affection with possession, this is the key...in what way do you care for ( or love or luv) this is so important!
You can make any connection you want as long as you communicate & understand boundaries. That's how I feel and thanks
So much Omega for 'sayin it like it is. 
I think you really need to look in the mirror and be honest with yourself. If you are the kind of guy who can just enjoy it for what it is, if you can bask in the warmth and the connection, then seek out those providers. There are some here for whom this is a deep expression of their real self, not a character they are playing. Their need to show you care and affection is a genuine need. There really is an element of attachment, and for that hour or two you're together, they really do become very deeply connected to you, and they want to love on you just as much emotionally as they do physically.
But that assumes you can handle it, that you can love and be loved without the need to possess, to "have." Not everyone is cut out for that, and if you are not... be honest with yourself, and don't put yourself in situations that will turn out to be awkward for her, and painful for you. You can look at reviews and intentionally seek out providers that still have great reviews, but aren't the kind of loving, adoring GFE provider that's likely to get you into trouble. There are some great providers out there that get really good reviews for being acrobatic, skilled "technicians", but don't connect with you on the same emotional level that others do.
The key is to just be completely, utterly honest with yourself, and not go looking for something that isn't right for you. In all things in life--relationships, jobs, brand of cars, whatever, we are often choose things with an incomplete understanding of ourselves. One of the hard things in life is to recognize when we have something that was not meant for us, and let go of it gracefully. In this hobby, you have to be able to let go gracefully, or it's not the right hobby for you.