Task: Assess the emotional content of the tweet and classify it as either 'neutral or no emotion' or as one or more of the given emotions (anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust) that best represent the tweeter's mental state.
Tweet: So I'm not being shady but one of Jongdae's ex rumoured girlfriends is going on WGM I'm not saying I'm over joyed but I'm over joyed #bitter
This tweet contains emotions: 
joy