Task: Categorize the tweet's emotional expression, classifying it as either 'neutral or no emotion' or as one or more of the specified emotions (anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust) that reflect the tweeter's state of mind.
Tweet: ' i can't even tell u a lie I felt like u were special, till I realized wassup and left, got u feeling dreadful '
This tweet contains emotions: 
sadness