Task: Analyze the tweet's emotional connotations and classify 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 best portray the tweeter's mental state.
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