When I first met Mike he'd been director of a multinational media firm earning £100,000 a year. But his fascination with internet porn videos had gradually taken an unbreakable grip on his life. It was a secret he kept from Annabel, his girlfriend of four years whom he was engaged to marry. Then in February last year, after hitting "rock bottom" with the addiction and coincidentally being made redundant, he finally decided to seek help. He confessed to Annabel and checked into the Priory. "I went through a full disclosure. The effect was huge for her - betrayal, disgust, shock. We were due to get married in September but we're now living separately."