That is really disappointing that your friends didn't show up tonight, especially after they confirmed they were coming earlier in the day. Fair enough that you are feeling disappointed, I think anyone would be in this situation. It's an awful feeling getting your hopes up and then being let down. Just remember this is no fault of your own and says a lot more about them than it does about you.
It sounds like you are being really mature about this and handling the situation really well by trying not to let it ruin your night 💙 Is there something nice you can do for yourself tonight instead?