James makes her feel like she's not been completely rejected by everyone in her life, and that she is still capable of getting male attention. I don't believe she is interested in him at all, though she may settle once she's bedbound and she realizes she won't be able to find anyone else. They were together for 7 or 8 years and she said they hadn't had a sexual relationship for most of that. They aren't fucking now, and they won't be when they move in. Sometimes people seem to forget that she literally had a faux epiphany due to the extremely strenuous act of ... walking down a hallway. She can't speak without gasping for breath. She can't reach her feet - oh, there's another job for James.
She's repulsed by him - the reason she dated him in the first place, apparently - but needs a servant, and he'll do. She justifies their relationship to herself by telling herself she's doing him a favor by being his only friend and chauffeur (while taking his money and using him) and not abandoning him because she still feels guilty for breaking off their engagement by admitting to finding and fucking men on dating sites, and eventually finding one she wanted to date. There was another black man she fucked regularly before Malan, right?
Bibi's name is Malan Sane. His sister is Gnima Sane. This isn't new info, guys. There is FB history (and I believe IG history with Gnima) between him and Chinny going back over the years.
Bibi's sister is his biological sister, and they're not fucking.
Chantal isn't romantically interested in James, and they're definitely not fucking.
Remember, it's a mentally unhinged 500lb balding woman and two minimum-wage-making 5'3 losers.
The lover's trysts and scandals exist only in Chantal's fat-addled mind.