Tragically, Sven has long since been reduced to catatonic horror at the thought of putting his beloved penis inside a woman who is literally made of knives. He re-enacts these scenarios with Momo because it's the only fragment of his earlier memories and personality to have survived.
...I love T-1000 Momo, but.
But. Here is something worse. Momo has Sven's exes stored somehow--either cyborg'd up for use as her remote bodies, or has their brain patterns and appearances in a virtuality which she connects Sven to when she feels he's in need of "punishment"; the exes are insane puppets of Momo, of course. These she uses for the aforementioned "scenarios" of psychosexual torment.
When he's had enough though, sweet little Momo-tan, in her adult-form body (from the strip she imagined macking on Sven) comes and comforts the poor half-mad Bianchi. She's gentle; even though she's a machine, Momo seems like she cares, almost. He has no idea the AI is the same as his exes, who he has been lead to believe collaborate with the machines because of what he did.
He's pretty insane, yeah. Some tiny part of him hopes that Faye and the human forces will rescue him one day. Momo, meanwhile, spearheads the official machine hunt for Whitaker, whom she sees as a personal foe.
Dunno what Momo would do with Marigold. I don't think she'd kill her, but there are worse fates than death.
Winslow, meanwhile, is part of a moderate AI coalition researching Hannelore as a template for new humanity; her disinterest in physical relationships and rightful fear of microbials makes her seem the only good human left.