I've had a few friends who wound up being in such arrangements and the jealousy and paranoia would be flying all over the place from both sides whenever one of them would be absent for a while or one of them would be telling the other a story about a past experience, etc.
I was thinking why do people get so twisted up about sex in this business. People frequently come here to be free of relationships because of broken ones outside the business then they get involved again and face the same kind of mess. Maybe things break down no matter where or what circumstances it happens because they carry the same flaws with them. Maybe they only think they want a lasting relationship but it's only the excitement of one that cranks their motor. Or maybe they enjoy being twisted around emotionally.
There are plenty of people who either don't know what they want or don't know what their real issues and faults are to recognize and over come them. One woman at work got crushed by a bad relationship not long ago only to enter a new one with the biggest misogynist A-Hole I've ever known personally. Does she fail to see where she's going wrong or is she really into things roller coaster deals and can't admit she likes the torture of that kind of deal.
By the way, this is not exclusive to Johns/SPs relationships. Many, and I mean MANY relationships involving people totally out of this SP business also end up in breakups or divorces.
SF
We focus so much on sexual relations when it could be all the other baggage we carry that's the true problem and the sexual issues are only convenient excuses.