Hi,
Like everyone has said, it sounds like addiction. I have been in recovery for s. addiction for many years, I know exactly the overwhelming desire and altered reality before acting out.
Since, I discovered personality disorder.

One can recover from both. You may want to ask yourself such questions as - what is it about paid for sex? is it depersonalisation? is it power?
these types of things can give you the clue to some of the underlying stuff. What was good about recovery is I got some abstinence, couldnt have done that alone.

good luck, and if this is helpful, let me know if you'd like me to share more with you.
river.