Is this maybe a ploy to date things again? I can’t remember exactly what it was (I think it was in a Darknet Diaries episode) but there was a court case where a guy came in with a document proving something in his favour. It was a contract or letter from the other side of his case. They managed to prove it was fake because it was in Calibri, Office’s default font, which hadn’t even been invented back when the document was supposedly written.