What does it mean when someone who had a crush on you from the past barely remembers you?

Recently, I ran into someone who had a crush on me from the past. When I ran into her, she barely remembered me. The last time I saw her was when I rejected her. I would jog her memory, but I figure it wasn't worth it and not a win solution, I'm i right about all this? I don't think she remembers me rejecting her. I also figure to move on 👍
What does it mean when someone who had a crush on you from the past barely remembers you?
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