I, (19f) was in law class with my two other friends, both 19f. Previously, we had been given an assignment that was to watch a documentary and answer around 10 questions. My teacher told us to pay attention, and she played the documentary. I watched it and paid attention, but one of my friends did NOT watch it, and fell asleep during the documentary. She was comforted because our law teacher told us we could find it on Netflix, so my friends decided to watch the documentary at home, later on. Fast forward to now, three weeks later. The assignment is now 2 weeks overdue, and they're panicking because they have not finished it and our midterms are coming up. So we're sitting in law class yesterday, and they're trying hard to finish finding the documentary online to watch. But Netflix removed it from their platform, so they tried to find an alternate website. The friend who fell asleep started to yell at me, begging me to help her find the documentary. She was saying how "You're NOT trying hard enough!" etc, which really annoyed me. However, I'm a people pleaser, so I ended up working hard and finding the documentary. When I found it, she took partial credit saying "WE found Coded Bias." This was upsetting because she was being rude to me before hand, so I took offense. Now I'm angry because she keeps boasting about how she found Coded Bias, but I can't help but feel angry. I think I'm bitter because she kept insulting me while I was looking for it, which was very motivating, but stressful regardless. Now she's saying how our friendship might be on the line, because I've expressed my anger. So I blew up at her and told her that she was being unreasonable and extra. AITA?

EDIT: Guys, I didn't express anger but I did say she was dragging it on too long, that's ALL I said to express how I was feeling.