Oh my god.........
Rockzmom, I'm afraid I will be reading your review for two days or something, to understand it properly. What a hell!!
It's just that I can't wait to tell you what I think about that movie! Some time ago, I was my favourite movie. Now I only want to say that "Дама с собачкой" is a great masterpiece from all possible points of view!
Also, it's not a love story at all!! It's not supposed to have a happy end. It had not to have and "end", or to give any explanations to a viewer. First of all, it's literature (I mean it's just a short story Chekhov wrote). It's not for entertaining a viewer! And there's no place for "liking" the film, in the simplified sense of the word "like". It's rather to make a viewer think, feel, ask. Not for entertaining or giving answers. Actually, as is well-known, art never gives answers. It only asks questions.
I'll probably write some more when I completely read and understand your post.