MONTHLY liaisons with escorts are the main hidden cost of being single, it has emerged. Rent, energy bills and council tax were recently highlighted as being more expensive for single people, but none of them compare to the sums loveless losers need to fork out for sex. You’ve also got to pay for a taxi to the hotel room you’ve booked under a fake name. If they fancy a shag they can just roll over in bed and start smooching their partner for free. “And don’t forget the psychological cost of banging a stranger with fillers you hired from a dodgy website.