Thank you all for your advice. And I'm afraid I don't have a sister, twin or otherwise! I am going to have to learn to be patient and take it as it comes - little by little I suspect. I have thought about films (to open the dialogue) but can only think of 'Priscilla...' which we watched very recently (but before I found out for sure). Are there any other titles you could recommend? I can understand his reluctance to share and he has hinted that there's something but "not yet". In the meantime, I will just concentrate on other things in my life and try not to let this 'secret' become the overwhelming part of it, which it's in danger of becoming! Thank you all - I'm sure I'll be back!