Task: Classify the mental state of the tweeter based on the tweet, determining if it is 'neutral or no emotion' or characterized by any of the provided emotions (anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust).
Tweet: LOL I have reminders for my ex-gf's birthday approaching. Too bad she considers me acknowledging her existence an affront...
This tweet contains emotions: 
joy