Task: Identify the primary emotion conveyed in the tweet and assign it to either 'neutral or no emotion' or one or more of the provided emotions (anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust) that best capture the tweeter's mental state.
Tweet: Imagine being bitter when your bias is dating &amp; sending threats to their partner. Like why? That's nasty. And they don't even know you exist
This tweet contains emotions: 
anger, disgust