I have tickets for an event with a friend. It's something we do a couple of times a year. This one is about two hours from home by train and involves a whole day out. We don't live close together, so meet in London and travel from there.
The tickets for the event have been bought, but not train tickets. It's a friend of 20+ years, we don't see each other that frequently now, but when we do it's like we've never been apart.
Before this outing was booked, another friendship group booked a shorthaul trip for another event. I hesitated initially, then the prices for the flights they'd booked increased, so I decided not to bother. Subsequently DP spotted that if we go from a different, equally local, airport, flights were £26 return! We snapped them up and booked a hotel (not so cheap, major city while big event is on) and I failed to check my diary.
I genuinely really wanted to do the first trip, but the same applies to the second one. I never normally let anyone down once I've committed to be somewhere, I was horrified when I realised what I'd done.
So....what do I do now?