Dear Kiwis, I hate to be vulnerable and ask for advice in a discussion thread, but it sounds like you all share this sentiment so I really need it:
I have a friend, he calls himself a woman. I met "her" through my now best friend. "She" was once extremely fun to hang out with, a little autistic, and I didn't agree with the trans stuff. But we had lots in common and "she" was generally very pleasant, also very talented in arts. Ever since some time ago, "she" completely spiraled.
Became obsessed with lesbians and anime girls and shows, vtubers, especially ones about highschoolers or little girls. Claims herself a proud "porn addict".
She constantly talks about porn, sex, and fetishes. 80% Of her humor is some variation of anime girls, porn or sex. Ditched her boyfriend and claims herself aromantic while posting porn on her social media - which we all see. Since we live in different states now we regularly text through messenger apps. She regularly shares very fetishistic porn there, ranging from feet to vore and "guro". She donates money to female streamers and dumps more of it on poorly disguised fetish gacha games.
She has a particular obsession with younger looking characters, though she denies it. About half of it is loli. She's also obsessed with a loli gore visual novel and has a roblox avatar of it. on a kids' website. she has friends who call themselves lolicons.
The problem is, she's fully aware. We called her out and tell her it's weird. She's fully accepting of the title and she's proud about being porn addicted. I condemn her behaviors, I feel like I cannot hang out with her anymore because this kind of hedonism is not good for the soul. I am also horrified she might get worse and get caught doing something illegal and I don't want to be part of it. But she's a huge part of my best friend's life. It's strange because he cannot let go of her, even though he hates everything she stands for and is also anti porn and catholic. She's given him horrible troubles in the past like threatening suicide but they've known eachother for almost 6 years, he must be attached.
I'm asking for advice on what to do. She is clearly troubled and very mentally ill and I grieve the person he once was, but it sounds like she's okay with herself. But I have to consider my best friend who must have some kind of sentimental attachment to her. He connects us together and I don't want to put too much strain or stress on him. What would you do if you were me? And if you could help her in any way, how would you do it?