Because women are magical creatures that change every minute, this is a kind of, like you never understand my sadness, just like the darkness of day and night.
If she was a little sad when she wrote this micro-signal, then maybe she was experiencing some changes, or she was lovelorn, or she was betrayed, or maybe these things happened to her friends. Her onlookers think that only she is the most reliable, so instead of flattering others and pinning their hopes on others, it is better to be kind to themselves.
Writing a signature, on the one hand, may really be a feeling, writing it down to warn yourself, on the other hand, it is used to express your inner feelings and find some * * * sounds by the way.
If she is pretending to be sad, then most likely, it is just a signature, which has no deep meaning. Boredom pretends to be deep.
If life is like a dream, things change, and life is so short, then why don't we do something that we can really grasp, such as loving ourselves and investing more in ourselves.