It's more-so on LS's end, I feel. She knows she made a string of bad decisions that culminated in her marriage turning sour. So for her to, in a bone-headed move, start dating some polyamarous terminally-online twitch/youtuber just feels borderline comical. Especially given how she has a son and how that would be for him. I mean is she that selfish? Did Destiny tell Melina that he was literally fucking Lauren or is that what she assumed? I don't want to picture Steven's naked body rubbing against Lauren's, let's be honest... hot ass body. Physically those two don't go together.
I get Destiny wanting to sleep with LS, but I just don't see what LS would have gotten out of it, aside from money? Which was probably why she fucked Tate on the first date.
Lauren was going through a divorce and had a dead career at the time. And she probably couldn't share much about what was going on with other people because it made all her previous tradwife shit sound bad. I don't know if she was always a drunk, but she was definitely drinking a lot on stream at the time, probably to deal with the stress and loneliness of her divorce. Particularly when she wound up living in that trailer park. And then in waltzes Destiny, who knows what to say and do to get what he wants. (Code Cave or Blav mentioned before that he keeps a spreadsheet about things girls like so he can surprise them later.)
So this guy probably comes in, listens to her, offers her advice, helps her career out by having her on his stream, etc, and she begins to have some feelings for him because he's working her. She feels seen, she feels heard, she feels appreciated. We know that privately Destiny speaks to women in a very different way than he does publicly. Lav has said it, Anavoir has said it, and we've seen his gay little simp DMs when he wants feet pics. And then in public, he'll do the negging thing. He even calls it negging, which means he's definitely studied pickup artistry.
In short, it's not hard to fuck a single mom who is going through a divorce if you can pretend to be a decent guy. Destiny can definitely spot these vulnerabilities and take advantage of them. It's one of the reasons he likes BPD girls so much. They, as part of their disorder, develop a favorite person to latch on to and project all their sense of worthiness onto. People talk about how bad people with BPD are, and they can be, but not many people really talk that much about people taking advantage of their position as a Favorite Person. (I don't think Lauren has BPD, but I think Destiny applies his Nice Guy tactics to a lot of vulnerable women and convinces himself he just has MAD GAME.)
That said, Lauren also has a reputation as someone who climbs the ladder with her vagina. So I wouldn't feel too bad for her.
When mrgirl was talking to girls about their experiences with the cuck, Destiny said he was only worried about him exposing his fuckboy behavior. Destiny always downplays the shitty things he does, and what he calls "fuckboy behavior" actually means extremely manipulative behavior to take advantage of vulnerable women.