Task: Analyze the tweet's emotional connotations and classify it as either 'neutral or no emotion' or as one or more of the specified emotions (anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust) that best portray the tweeter's mental state.
Tweet: [ @TheChicMystique ] — hurting badly and that he can't just leave him like that. Angry and heartless. ]\n\nI promise you that I'll be back, —
This tweet contains emotions: 
anger, sadness