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: @thixotropic No. Was so sudden. Hasn't sunk in yet. With Leo I knew it was coming.
This tweet contains emotions: 
surprise