AITAH for letting my friend think I was in a relationship for a month?

I’m part of a close friend group with two girls, who I’ll call Jenny and Abby. Recently, Jenny started dating a guy named Max, and from the beginning, he showed a lot of red flags. I don’t judge people quickly, but when Jenny texted Abby and me crying after seeing a group chat where Max and his friends were talking badly about her, it was clear the relationship wasn’t healthy. Even so, Jenny eventually got back together with him. This really hurt Abby and me, especially because Jenny repeatedly chose Max over us, including hanging up group calls to talk to him. Feeling ignored and frustrated, Abby and I decided to pull a prank to get her attention off Max. Abby told Jenny that she and I were dating. This immediately backfired when Jenny had a breakdown, so we quickly admitted it was a prank. A few weeks later, we tried again, this time with a more detailed backstory, and Jenny believed it. Even while Abby and I were “fake dating,” our friendship with Jenny didn’t change at all. As time passed, Abby and I realized Jenny still thought we were actually dating. We were surprised but assumed she knew it was a prank and was just playing along, especially since she had caught on the first time. Eventually, we forgot to tell her the truth until much later, when it came up again. When we finally told her, she got extremely upset. She said she felt lied to and claimed we made her feel stupid, even though we never said anything insulting. We even showed her screenshots proving we weren’t dating, because she didn’t believe us. When I said, “she really believes it?” it was because I genuinely didn’t think the prank had worked, not because I was mocking her. Despite explaining everything multiple times, Jenny said she didn’t know how she could trust us anymore. What hurts the most is that we’ve been friends with her for many years, yet she now says she can’t trust us over a prank, while continuing to trust Max, who has hurt her multiple times. Abby and I are really upset and just want to know who is actually in the wrong. (this isn’t necessarily recent but i still would like to know everyone’s thoughts on it)