AITA for telling my fiancé about my ex showing up at my workplace…after he claimed we were still together?

AITA for telling my fiancé about my ex showing up at my workplace… after he claimed we were still together?

A woman thought she had cleanly ended things with her ex years ago—until he suddenly starts appearing again, claiming they were never truly over. But when her fiancé reveals conflicting memories and missing records of her past, she’s forced to question what really happened and whether she can trust either of them.