Long story short - friend said late last night they were going to gym class today, did I want to join. It's a chain across our city and I mentioned I'd be interested although had a night out planned.
After night out, messaged to say I'd still be keen and we caught up this morning. 11am, a few texts saying she'd message to confirm. Then a text saying could I do xxx class in an hour's time - no, as I still had to get ready and travel and it's an hour away. Mentioned that I hadn't realised they classes were mainly in the morning and could we do tomorrow eve/she should still go today.
Her response: Hmm I think I mentioned that last night? I'm still going to go. Next time can you let me know earlier as I missed the class I really wanted to do.
My reply: Sure and sorry you missed it. Maybe we should have had a specific class in mind as I would have been ready for that - let's aim for that next time.
I know its petty but really resent being told off like a child for something that I don't think was my fault?