The thing is, I wasn't even messing up. Not even slightly. Not even a tiny mistake on my part. And I knew it - even had the emails from my colleague with the time on them. But I STILL reacted as though I had done something wrong.
I mentioned this to a friend earlier today and she said "weren't you just irritated with [colleague]?". And I really wasn't. I really understand how if you're really busy you can get things mixed up and make mistakes and it's not the end of the world. But I still felt as though it was me who made the mistake.
It is strange when what you KNOW and what you FEEL are so completely different.