This is an interesting question, about who is responsible for the break up. I found it impossible to be sure with any certainty if anyone was really "responsible" for the break up, due mainly to the device of having one character's story being told in reverse chronological order. I got so lost trying to keep track of where she was in time in relation to him that I eventually gave up.
I thought there was a lot to recommend the show, though, except for that ridiculous set (what were those chairs doing stuck to that big sideways wall, anyway?). The cast was good and the songs were excellent.
"If they can get you asking the wrong questions, they don't have to worry about the answers." Thomas Pynchon, GRAVITY'S RAINBOW
"Reality is that which, when you stop believing in it, doesn't go away." Philip K. Dick
My blog: http://www.roscoewrites.blogspot.com/