It's the baseball cap that makes her look especially retarded. Just one step down from a helmet.
This is the look she's trying to copy.
To be totally fair, I kind of think the only women capable of pulling off any hat-over-hijab look would be the ones who are so good looking and put together that they could wear literally anything and have it look decent. Chantal is kind of the opposite, so all the tard hats accomplish is strengthening her resemblance to a staggeringly obese group home resident.
I cannot imagine dating, let alone marrying, someone with so little understanding of basic English.
At the very least, I've seen couples who seem happy enough despite a bit of a language barrier. Mostly they just muddle along by having more proficient friends or family members (and later, their bilingual children) help them translate when needed. The difference is that with those couples, it's usually visually obvious that they've got good chemistry and really enjoy being around one another, and they really must if they're willing and able to make a go of it regardless of the goddamned massive obstacle. Your mileage may vary on whether a fulfilling relationship is possible in this case, but rarely it can work out based largely on letting actions speak louder than words.
It's very obviously not the case here, with Chantal being overly codependent and Salah failing to hide his contempt and disgust, it's an amusing spectacle. It's probably millions to one odds that any white woman with an internet presence ever actually responds in earnest to random thirsty foreign scam artists contacting them out of nowhere with messages comprised of shallow Engrish copy-and-paste versions of the world's worst pickup lines, and when it does happen, it's exponentially more likely to result in a scenario similar to this or worse.
Which implies that she just thinks he’s a flat out retard, and that she was so used to being around exclusively Peetz & Nader, her standards for conversation are the weird interactions she has with Salah, her new pet simpleton.
Nader is a retarded crackhead whose English is also so poor that his meth rambling goes from nonsensical to literally unintelligible, and on top of that his fucked up grill probably further prevents him from enunciating properly anyway. Peetz is pretty much incapable of an independent thought and just regurgitates whatever reddit has told him the correct opinion is about any given topic. Bibi, who knows, but he chose to ignore Chantal as much as humanly possible and barely spoke to her at all. Apart from Nader those relationships were all basically sexless so she's used to that. Of course Salah seems like a huge catch. He's less gross looking than Nader or Peetz, willing to keep Gunt company all of the time, appeases her by essentially acting as her butler, actively participates in her dumb ass content totally on her terms, plays along with whatever she's currently lying to her audience about, and doesn't blab about shit she doesn't want people to know. Yeah he's retarded, but it isn't a dealbreaker because he's just a prop for her anyway and if anything is probably ideal because it makes him easy for Chantal to push around.