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: @GOtvNg CN seems like you only appreciate good reviews. No apologies to my concern years ago.
This tweet contains emotions: 
joy, optimism, sadness