Is it common that some memories hurt after some time?

Hi, Before the isolation, I fell madly in love with a gorl I was dating. Everything seemed to go perfect bit then she became cold. As I really liked her as a person, we agreed to remain friends. Anyway, the last time we went out (as friends), she became really offensive. It seemed like she was intentionally trying to insult me. She meant o lot to me and that last experience really hurt. It’s actuall not because of love but because I really trusted her and had no other intentions rather than having some nice time together and being insulted in return that hurt so much. That evening When I came home I felt like someone stabbed me. It’s strange – I was married and going theough divorce didn’t hurt that much and I respect my ex wife the same way she respects me. But this girl seemed almost like she had some sadistic tendencies. Also, in the past, I went through experiences where girls didn’t show interest and I respected their will. Bit this one – I just don’t get it. During the quarantine, she messaged me a couple of times and I just kindly replied without showind any intention for further discussion and would prefer not to see her again. Also, in the meantime, I have met other girls but every once upon a while these memories still hurt.