She leaves for Tokyo on a trip for work. In the car, at the airport, notifies that leaves him. He seems to accept. No question, no confrontation.
Some time after, a storm descended upon the city. The two spend their last day together in the house where lived the last three years. Things around them remembering the life they led. None of them, however, does not seem interested in return clock and both seem reconciled to the situation. Maybe just seem reconciled?