What made me sad (spoilers)
was the part that Jason really believed that he had a shot with Emmie; partly by circumstances in his life he had no control over.
But the brother had to "remind" her what she committed to. I felt that was a little bit cheap. Her problematic relationship wasn't completely her fault.
I would have seen her making that choice without interference. At a certain point in your life you need to grow up and stand for yourself. That choices define us.
Graham will never know if his wife came back because she wants honestly to try again or she just feels she has to because she made some "social" commitment.