Why was Amanda so upset when everyone was celebreating?

Amanda was upset during the celebration because she felt excluded and overlooked, perhaps due to personal struggles or a recent setback that made it hard for her to join in the festivities. The contrast between her internal turmoil and the external joy of others amplified her feelings of isolation. Additionally, she may have felt that her emotions were invalidated in a moment meant for happiness, leading to a deeper sense of frustration and sadness.