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: @VileBairn Turning then, the older woman looked at Sybil with a most somber expression. \n\n“She ran away from me. But I cannot blame her.”
0.383