He lost sight for life since he lost her. She lost herself since she lost him. He decides that he has to move on. She decides that she has to let go.
All of this because of an accident. All of this because of a careless act. All of this for a few seconds of contact. All of this for a few seconds of connection.
No one knows about their next life. Both know they will meet. No one promises that to happen. Both knew someone is there.
One Accident costs one life. Are you going to risk it?