Are you practicing drinking your tea with one pinky out? And enjoying drinks with ice in them? I am not sure they know what a cold drink is in England - cold, damp weather, yes, cold drinks, no. September is a nice time to visit. Contrary to popular belief, there is a 'non-rainy' season in Britain but bring the 'brelly just in case!
Linda, I so admire your positive outlook. And I share it for your future with your H. There is no doubt that he needs to learn his lessons and have the fantasy disintegrate. When it does, I see him coming towards you. He has to come to a point where he realizes that he can't have his cake and eat it, too. When someone - either you or the Russian - by deed or words - insist that he get off the fence and make a choice. He has not really had to make a choice before.
Be gentle with yourself, too. Move forward in small, manageable steps. I found that I was taking on too much and it only stressed me out more. Sometimes I needed to be alone and I needed the peace. You can do this - all of it!