Definition: In this task, you are given a Reddit post as a text. Your task is to generate a title for this text. The title should start with "TIFU by", followed by a situation that caused humor. The title should contain 7-12 words, ideally.
Input: Text: i saw an old friend at walmart and we were bullshitting and catching up. he mumbled that his fiance' left him, but i couldn't quite hear him so i said "what" and he repeated himself while i kept repeating "what" because he kept mumbling. after the last time of him repeating himself, he said it loudly that his fiance' left him and i just said "oh my god, i'm sorry" and kind of had to walk away. i felt like an asshole.

TIFU by making a guy repeat that his fiance' left him four times.