If you Google the word ‘cougar’, it won’t be long before the implausibly beautiful Claudia Opdenkelder pops up. The founder of Cougarlife.com, which has over 2 million users in the US, Claudia was here last week to publicise the new UK arm of her dating website, and whisked me out to lunch to tell me all. Now I am no cougar. Mr X was three years older than me, TL is two months older. But, as far as Claudia is…