Determine the emotional tone of the following tweet: "@paulsherard @margarethaynie wow I just realized how much of a sexist pig I am! I am truly sorry to anyone I offended". Use the provided emotions: anger, anticipation, disgust, fear, joy, love, optimism, pessimism, sadness, surprise, trust. Respond with the emotions you identify or "neutral or no emotion".
anger, disgust, pessimism, sadness