My best friend (F23) had a birthday coming up, but she was super busy with work related things and therefore didn’t have time to plan anything. She asked me (F22) to plan her birthday for her as she stated I know her the best, so I wanted to take care of it for her. I ran everything by her; the plan, the times, the places… all of which she approved of and consented to! She was happy with the plan. On the day of the birthday, everything went according to plan. Some things didn’t go perfectly (like the club not being that busy, there being a small amount of time [like 20 mins?] between reservations, etc.), however those are things that are completely out of my control. A few friends that attended the party even said it was an awesome evening and they had a blast. The next day, she tells me that she was super upset with many things in general, but notably with how the night went. She said it "didn’t flow as well” as she was hoping for, was "not concise” etc. I was really bugged by this because I put in a lot of time and effort, and not to mention SHE APPROVED EVERYTHING BEFOREHAND? It wasn’t like I planned random things and I didn’t check anything with her, she literally consented to the plan. She even said things like “I don’t mean to sound ungrateful, but…” or “I don’t want you to think I don’t appreciate the effort you put into planning this…”, etc. and also made a backhanded comparison to the birthday she planned for me a few months ago, saying hers was more concise. The way she described things wasn’t even in a manner that fit constructive criticism, it was simply her going on about how upset she was and that the planning wasn’t “thorough”. I communicated how I felt, we handled it maturely on the surface, and she’s going through many things right now that may have caused this situation to “snowball”, but I still feel bugged and upset. I understand it was her birthday, hence she wanted it to be perfect and flow nicely, but I strongly feel like she didn’t really acknowledge how much I put into it (like the love and effort put into doing all of this rather than how everything ended up going). I also noticed she didn’t take any accountability for having agreed to the plan, or even realize that a lot of the issues were things that were completely out of my control. My boyfriend and mom both think she was being kind of ridiculous and ungrateful. I don’t know if I’m being overly sensitive here or if I’m justified in feeling this way. I love my friend, it’s just I can’t help but feel like this behaviour is absolutely insane. If I’m NTA, is it worth bringing up again?