Task: Determine the dominant emotion in the tweet and classify it as either 'neutral or no emotion' or one of the eleven provided emotions (anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust).
Tweet: @StarklyDark 'I know you trusted me.' His words were soft as he ignored the anger and focused on the hurt beneath. 'I know I screwed up.' --
This tweet contains emotions: 
anger, disgust, sadness