Melinda Messenger has reportedly split from her survival expert fiancé Dr Raj Joshi, just six months after becoming engaged.The pair had announced their engagement last summer, when Raj popped the question while they were on holiday in New Zealand. A source has told The Sun: "Melinda is still a glam girl at the end of the day - and a life of adventure wasn’t really in her plans.They fell fast and had an amazing year or so travelling the world, but decided to call it quits this year.