Determine the valence intensity of the following tweet, considering the mental state of the author. Assign a real number between 0 and 1, where 0 denotes extremely negative and 1 denotes extremely positive.
Tweet: @MalYoung @AngelicaMcD I hope to now see some levity, light, romance and happiness come Stitch and Abby's way after such a long hard road.
0.567