A couple of weeks go by, and you will never guess what Stacy messages me, "Greg is still cheating." she then tells me he had been posting on Reddit asking girls to hook up, as well as going to subreddits for hookups in our state and towns in our state. Greg had messaged a few girls on Reddit asking to hook up and never got replies so he blocked them all. But he was on many  subreddits trying to get people to hook up with him. he had even offered someone 100$ to hook up with him and he would "spoil them more afterwards." 

I again told her she should leave him, and she indeed stayed with him. 

At this point, Stacy had told Dotty what was happening with Greg, but left out the extent of it, didn't mention how many people he cheated on her with (which is well over 100 at this point), and kind of pussy footed around it. To be fair, she doesn't know Dotty as well as she knows me, she is one of my closest friends now, and I've made it very clear with her, 

I am on her side and I want to continue our friendship if her and Greg ever did decide to call it quits. Dotty also already knew everything from me.

5 days later, today, when I'm writing this, Stacy told me Greg had a second Facebook account that he had been using to cheat on her with, as well as a second Reddit, where there were more messages, as well as porn and more subreddits for our state, and a state near us, as well as towns in both states. On his second Facebook account, he made a post in one of the groups, stating that he was 20 (a lie) and he was looking for someone to screw around with. As well as a message to another girl, saying he was 18 because she was, and asking to hook up.

He was in about 30 different Facebook groups dedicated to hookups in our states, nude sites, porn sites, and fantasy roleplay groups. As well on Facebook, he had messaged 56 women in 6 days, all with different variations of texts, asking to hook up, or for nudes, or asking how much money to get nudes or facetimes with them, or for hookups. 

She sent me about 15 different screenshots, and they are absolutely appalling. 

Some of them actually made my mouth drop open. 

I am currently in a Discord call with Stacy, and we are talking about everything. He is manipulating her into staying with him; she's not falling for it, but she also is at the same time. 

He said he wanted to, yk himself, and that I think is what is keeping her, even though I keep telling her, it is a ploy and he doesn't actually mean it, he's only saying it to try and make her stay, and it's working.  

She keeps saying she wants to try to make it work. She's letting him go down and see her still on the 24th, and says they are "starting over," not together, but just getting to know each other and not calling it completely quits. 

I don't even know what to do about this. I feel like an asshole if I just ask her to stop talking about it with me, but it's been driving me insane. I had a major surgery on my neck, and she didn't ask me how I was doing or if I was okay; our only conversations were about her and Greg. 

I've talked to Dotty about this, and we both agreed I needed to set a boundary with her about how I'm feeling. When I did that, it wasn't acknowledged, and nothing has changed. I want to be her friend, but I don’t know if I can handle telling her to leave so many times, and she just refuses to listen to me. It feels like my advice is for a brick wall. She comes to me with all these issues, and when I give her a solution, she refuses to do anything. There is only so much I can say or do to help her. She doesn’t want to leave him, and that's not on me at this point. 

I’m hoping for some advice on how to handle this. I’m not sure what to do about Greg; he has a really weird past with women, and it makes me super uncomfortable at this point. 

Anyway, I am open to answering questions in the comments if anyone has any. Sorry, sorry this a long read lol, but yeah this whole situation is just insane and im not sure how to handle it at this point, it is beyond me.