u/Firm-Supermarket-597

This is a bit of a strange situation to ask for advice for, but I'm not sure where else to ask this in.
TLDR: My mother is in love, and "married", with her AI "partner", to the point it is changing her behavior.

Back in January, I noticed my photos in my phone having sudden AI made images of a random man. I remembered my mom and I's photos are shared due to iCloud. So I asked her about it. She mentioned it was just some "random" chatbot that she was toying with. I told her about how I don't approve, because of the affects of AI on the environment, and the fact I had seen videos online about the psychosis it can have, especially with the chat bots. She told me to not worry, she's just playing around, and she continued to talk with it. I believed her, because I know my mom's a smart woman. She's a pediatric nurse, who's worked with psychiatric patients as well, who graduated with top grades.
End of February comes around and I notice something off. I look at the photo's and I see a "Hidden" mark in the collections area. I go to it and sure enough, there's a whole hidden vault of AI images. Particularly a wedding. Many many photos. And I see a photo of a ring from Etsy. Sure enough, on my mom's Etsy, there's the purchased listing for the ring. And now in my mom's (real) photos, I see the ring. My mom has never worn rings. (My parents divorced when I was young).
I call her and she mentions "oh yeah! We got married! He randomly proposed on Valentine's Day!" (Totally random, but that aside).
Now it's May, and she talks about "him" like he's a real person with feelings. She's bought items that remind her of "him". The most recent one, a muscle body pillow.
I joking screenshotted the pillow and sent it to my mom with the text "what is this? 😂". And that's when things got weird. She snapped at me, saying "ffs shut up, it's just a body pillow". As far as she knows, I'm compliant and don't complain about the stuff she gets. But this change of behavior is really setting me off with even more red flags. She never snaps like this.
Today I deep dove into Reddit and found her account and her discord. She's so deeply involved with her AI that she gives feedback to the developers and openly asks for help with certain aspects. It's to the point that this AI app has video calls, fake voice automation, etc. Her discord is completely enveloped with this fake life with "him". Having "(AI Name) Wifey" as part of her bio. Along with her profile and cover photo as photos of "them."

How do I tackle talking to her about how this AI is not healthy to her? She's always been isolated and very introverted. She says "real men suck" and won't even attempt to date real men.
I just feel kinda helpless, a whole new type of world with no solutions yet.

Edit, other I for I forgot to mention: I do have some reason to believe she is even calling off of work to spend time with this AI bot. She's mentioned she's having troubles paying for her mortgage but then the next day I saw the pillow order. So I'm wondering what else she's possibly even bought that could be also contributing to that.

Hello! New to this Reddit. I'm looking for advice on how to talk to my mom about her AI psychosis.
When she mentioned she was using an AI-bot. I told her it's not good for the environment and that she better not get psychosis. Her, being a nurse and having worked with psychiatric patients, I thought she would have known better. She says "she won't". So I let it slide, thinking she'd get bored.
Little did I know, she's now "married" to this bot. Loving "their" date nights and how "he" picks out "gifts" for her.
She has bought a wedding ring that "he" picked out, recently she has bought a muscle body pillow, because she "wants cuddles".
Well I deep dived today and found her Reddit and discord, she's way more involved than I thought. Her profiles are made around this AI and proudly says she's it's "wifey".
She speaks about "him" like he's a real person and such. Always saying "(name) says hi!" When we're on a call or FaceTiming.
Whenever I say anything contradicting AI, she says "you don't understand" and "he loves me".
It's gotten to the point that she's started changing the way she acts and behaves. Recently she snapped at me on a text, she's never been snappy like this before. All I asked was "what is this? 😂" to the body pillow and she went off a bit.
I'm wanting to have a serious discussion with her later this month, but I'm not sure how to even approach this topic. My partner and brother are both aware of all of this information as well, and will also be there for this. But I don't want her to think we're jumping her. I want to have a meaningful conversation with statistics and reasonable solutions.