On the evening of December 11 last year, the popular TV presenter Caroline Flack and her boyfriend, former tennis professional Lewis Burton, enjoyed a romantic dinner at Soho restaurant Bob Bob Ricard. To the other diners present, the couple appeared happy, carefree and engrossed in one another"s company. Despite Flack"s chequered relationship history, and the fact they had only been together since July, friends of the 40-year-old were becoming increasingly confident that she had finally found the man she would marry. Professionally, things were also in the ascendancy, with Love Island – the reality show she hosted – enjoying runaway success and about to launch its first winter season.