john suchet was in mourning after losing his wife bonnie following years with dementia .
their relationship , he once said , was ` made in heaven ' the broadcaster declined to comment , stating it was a ` private family matter ' , but fans took to social networking site twitter to offer their condolences .
classic fm presenter suchet , now 71 , has spoken openly about his wife 's diagnosis and the toll it took on their relationship , writing a book .