 When Frank goes to Janes apartment with the flowers(which are now stems),   they change the scene completely at this point. Frank starts walking around   her place and commenting on how nice it is. He soon enters a room with a   window open and a lot of wind starts coming in. It is established that Jane   lives near a railway station. At one point a mailbag flies in the room into   Franks arms. Right after that, Jane then says "Im making a Protein Shake". 