This may sound like the behaviour of a teenager rather than the fiftysomething, twice-divorced grandmother I am, but I'm single, so why shouldn't I expose myself to every dating opportunity that comes along. I'm looking for a handsome, charming, erudite and wealthy man who takes care of his body. But I haven't met him so far and always seem to prefer men half my age. If I fancy shacking up with younger men, I don't see why I shouldn't. After all, Jerry Hall, Joan Collins and Kim Cattrall are all at it.