It's way past the point of giving her the benefit of the doubt. Her motivations are not just out of good-will based on her own world views. It's explicitly manipulative and hedonistic. She just wants to see Holly turned upside down. The tone of her dialogues in the video she sends Lena is mocking/smirking/amused, not encouraging/sex positive/girl power. And that's just this most recent strike against her. She's had many many moments where the reader has to question her motivations and whether she is genuinely just a free spirit thot or manipulative queen bitch. And it's exceedingly clear that she is the latter by now.
I'm not even saying this as someone who is disillusioned by my future waifu Ivy. I'm clearly a corruption player and fapped to Holly's downfall lol.
