Kym Marsh has just shocked me with a revelation – she’s never had a housemate from hell. I’ve just spent several minutes detailing a mere handful of horror stories from my own experience – the one who would never empty the bin, the one who wouldn’t stop playing Hawaiian music, the frugal one who turned the radiators off in February and hid all the knobs so we couldn’t turn the heat back on – only for her to give a sympathetic laugh.