Task: Classify the mental state of the tweeter based on the tweet, determining if it is 'neutral or no emotion' or characterized by any of the provided emotions (anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust).
Tweet: Desmond was asleep when I called after I got out of my meeting... he still answered and let me vent to him the whole way home 😍 #sweetness
This tweet contains emotions: 
joy, love, optimism, sadness