AITAH for being upset that my friend bailed on going to a three day festival with me?
I (19F) sent a post about a festival to my friend group’s chat asking if anyone would be interested in going. One friend, “Ava” (19F), said she’d be “down to go.” I didn’t pressure anyone or ask repeatedly. She asked how much tickets were, and I told her £145. She said she’d need to save and pick up extra shifts at work. She later told me, without me bringing up the festival, that she was trying to be money-conscious and saving up. She said she’d buy her ticket the following Wednesday and that we’d get them together.Wednesday came and went without her mentioning it. The next morning I asked if she’d bought her ticket. She said no because she wasn’t sure if I was going. I replied that I was buying mine now and asked if she was getting hers too. She said yes.I bought my ticket in full. She then said she couldn’t buy hers because she wanted to use PayPal Pay in 3 but had been banned from PayPal. Since I don’t have PayPal either, I asked a relative for help. My mum ended up taking out the Pay in 3 thing in her own name for Ava’s ticket. This was stressful because the first payment failed after taking the money, and there were only ten tickets left. I had to contact the ticket company before we eventually got the ticket.Afterwards, Ava asked what she should bring, so I sent her my camping list. We talked about outfits and got excited about going to our first festival. I mentioned I was planning to wear joggers on the coach, and she asked how much the coach cost. I told her it was £44 return from London to Northamptonshire.She then suddenly said she couldn’t afford it and wasn’t going anymore, asking if any of my other friends could go with me instead. That upset me because it felt like going with me had become an obligation. I offered to pay for her coach ticket without expecting repayment, buy the tent myself instead of splitting the cost, and lend her a sleeping bag. She still said she couldn’t afford it and was sorry.I told her that was okay, but she’d still need to pay off the festival ticket because it couldn’t be refunded, and if she didn’t pay, my mum would be responsible for the debt. She said, “I’ll have to do that then.”She then ignored me for a day before messaging me at 1am asking if I was upset with her. I wasn’t in the mood to talk. The next day, while I was out with family, she messaged again and tried calling me. I’ve noticed she only really contacts me when she’s not with her boyfriend.I completely understand not being able to afford something. What bothers me is how last-minute she backed out after I had gone through so much stress to secure her ticket and offered multiple solutions. She also never seemed concerned about the fact I’d now be travelling alone, camping alone for three days, and making the journey home by myself. Meanwhile, after leaving me on delivered for a full day, she started repeatedly messaging and calling when I didn’t reply within an hour. Am I wrong for being upset?