Advice for coping with a relationship with an escort?

[Simon]

Hmm. Difficult for a man in my position (trapped in a sexless marriage, having to pay for sex) to avoid the obvious "you lucky bastard!" reaction...

You are indeed getting for free what other guys have to pay for. If you have a problem with that, it's probably because you see her as "yours"... which she isn't really. It's that possessiveness which is the problem here. I suppose the fact that you started dating her without knowing what you were getting into didn't help, if you'd met her as a client you'd be grateful for all the "freebies" you're getting.

Perhaps it would be best for you to book a few escorts, to get yourself thinking like a punter. Pick girls who are quite unlike your girlfriend (different ethnicities, for instance) and try to broaden your horizons somewhat.

Then look at how much money you've just spent, realise that a woman you really like is ready to give you that for free, and appreciate what you have!