Boyfriends ex sent me a sex tape of them

I've had to block my boyfriends ex on Instagram. He is friendly with a lot of his ex's but this specific one he said was toxic and a weirdo and kind of crazy. She had messaged me on Instagram telling me how much of a lucky girl I am because while my boyfriend has a small dick he's a selfless lover with a great tongue. Weird shit like that. She is blocked on Instagram and I got a weird message from her on Facebook. She sent like 6 videos saying "I bet he doesn't let you do this to him?" And it was seemingly their old sex tapes. I know they aren't recent because his hair is pink now and in the videos he has aqua hair. She sent their old bdsm sex tapes. I do know he's into bdsm and he's a switch so he can be dominant and submissive. But she sent me their old sex videos where he was submitting to her and some videos involved pegging. It's just the weirdest shit. I know everyone tells me to keep blocking her and ignore because clearly she's a weirdo. I just want to know what her deal is and why she's doing this nonsense.