I managed to snag two tickets to a sold out concert, and me and my sibling are dying to see this concert for a long time. My friend knew I had them and casually asked if she could come too. I rejected her, because I only bought two for myself and my sibling, and these tickets were expensive. She ended up kind of huffy and said, Come on, it’s just one ticket, saying that with a high tone voice. I told her I understand her, at the same time, these tickets are already planned for me and my sibling, and adding my friend in the last minute would mess up our plans. I also told her that I spent a lot of money on them and I needed to stick to my budget. I can't say I did the right thing, but I just want to know if what I did was the right or wrong AITA for not sharing my ticket to my friend?