I don't want to come across as a Bibi defender, but my take on him is this:
We really don't have any clue about their off-camera interaction. I am inclined to believe that it is not dissimilar to their on-camera interaction and chemistry (i.e. almost none at all), but unless a neighbor or family member rats them out here, we'll never know for sure.
Likewise, I'm not gonna speculate on his visa, lack thereof, or application for. I'll just assume he is there, and could conceivably leave if he really wanted to. Her family appear to be accepting and cordial toward him, in the rare few glimpses we've seen of them playing cards and such. So, whatever he is, he hasn't creeped out the more "normal" people in the story.
My theory is that they may have shagged a few times, and regardless of whatever Bibi's motives might have been, I'm willing to bet they were a legit "couple" to a degree of sorts. I think the fire, spark, or legal motivation to build their relationship into anything more just hasn't been worth the effort (Clotso puts in zero effort into everything, and Bibi is happier with his video games it seems).
It may be difficult for either one of them to live alone financially; if Bibi's bread and butter is security guarding, he may not make enough to get a decent place on his own (he may also be sending money back to family in Africa; he would be a true cad if he isn't) Clotso is incapable of managing a budget or credit, and has admitted to going into fairly deep debt by charging food [Uncle Dutch would like to offer some free advice: if you are struggling with money, avoid buying food on credit as much as you humanly can; stick to durable goods with value if you must go into debt] So, it makes financial sense for them to live as roommates. For all we know Bibi likes aspects of Clotso's personality; Peetz does after all. She also managed to live with Peetz for years in what was essentially a loveless, sexless roommate arrangement. She has just replaced Peetz with Bibi, but the dynamics of the relationship remain the same. Her man must never get in the way of her eating.
Last week she whined about "Bibi doesn't understand food addiction", a plaint she has made several times in the past as well. I suspect that Bibi has been getting fed up. This is the reason for the screen, and staying in the hotel, and eating in the car, and filming at weird hours when he is not around. Peetz, on the other hand, makes no judgements beyond some tame fat girl jokes, and he may well harbor some attraction toward her still. So, she's been ever so much, little by little, inching back towards Peetz, even going so far as to say "we'll be staying in a lot of hotels". Delusional sure, but it still tells us where her head is at.
So what of Bibi? He probably thinks if it ain't broke, don't fix it. He has a place to live. She probably doesn't nag him about his video games, like other women would. They stay out of each other's way a lot (as much as an elephant toddler can stay out of the way).
He has helped her with drives to and from the hospital, he has given her injections, and she claims he also helped with wound care. She might not have been lying when she told us about Draconian no-travel, no-work rules laid down by Bibi (which she did not obey anyway). I would say his involvement ranks between what is expected from a roommate and what is expected from a relationship partner. A roommate is under no obligation to give injections, but rides to the hospital fall within fair duty. This kind of jibes with roommates who have been intimate at least on some level. But Bibi's rules are getting on her nerves, and Peetz never judges...
One weird thing she said was how Bibi so so totally OK with her staying in a motel with Peetz. Keep in mind, he has never even met Peetz, which is weird in itself. I can see being tolerant of the motel if I knew them both, and understood their dynamics. But with a guy who I haven't any clue about, have never seen or talked to? Not fucking cool, and I might go out on a limb and say that that would be the prevailing viewpoint of most guys.
Unless Bibi believes he is in a platonic roommate relationship that only coincidentally is between exes who were barely a couple to begin with. Then, why should he care? Perhaps she still belabors under the illusion that they are still a romantic couple because Bibi has never officially and finally broken it off, even if it ought to be obvious to her.
I don't see any reason to think he is a bad guy. Maybe he is? I just have seen no evidence of any malfeasance. He seems relatively willing to help her out, but seems patently disinterested in her as a girlfriend. I know couples like that, with this strange kind of balance. They stick together because both are too cowardly and/or lazy to take a step into the big bad world alone (as well as too cowardly to rationally assess and discuss issues about the relationship). Such couples, incidentally, often produce no children but do have cats. The only difference I can see between that sort of couple and Chantal/Bibi is that Clotso weighs four hundred pounds and is a looney toon with a rotten core.
