Do girls normally look back at conversations they've had on dating apps with guys they've matched with?

I matched with this girl in October last year. We exchanged numbers and went on a couple of dates but nothing came of it. We decided to just be friends. Yesterday I got a notification from the dating app saying the girl liked one of my messages. I clicked on the notification which took us to the conversation we had and I didn't see any messages that were liked. I'm guessing she unliked it out of fear of getting caught out. Is it normal for girls to go back after so many months to go through a convo they had with a guy?

Do girls normally look back at conversations they've had on dating apps with guys they've matched with?
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