I have to agree on Basia's compliments (and those of the unheard others) about the dialogue - it's quite hard to write good dialogue that reflects the character and moves the story along in ways that are "unspoken"...and you are very good at that. There is a tangible feeling that one is dealing with real characters (all of whom have unspoken feelings hiding behind their acts and so it is perfectly natural for the story to end in a conversation that remains unknown to the reader) and the story flows in a beautiful, unobtrusive way - the complexity of the various unspoken relationships had me puzzled from time to time, but that is a good thing.
I particularly liked how the character's feelings always remained...earthbound...in a way, how tragedy was accepted with calm and how Janina was brought to accept transformations and changes (the train journey is my favourite bit, showing in an almost magical realist way how Janina deals with her feelings).
You definitely are a talented writer - there might be some places where the dialogue could be clipped a bit and a few more descriptions could be added, but that might also be my own preferences obscuring my judgements