I do think Yewande is being held to a different standard too. If you Google 'angry black woman stereotype', there are some interesting articles. And the thing is, this type of structural racism is very insidious, you don't realise you are acting in this way, we've been conditioned to it.
Previous posts have described Molly Mae as acting like a little girl, or other girls as having tantrums- more childlike/ innocent, less aggressive (while still harmful). I don't think it's a conscious thing, but worth reflecting on.
Personally, I think Yewande isn't a good fit for the show, she can't turn it on and pretend like the others. She comes across awkward and fake when she tries. Maybe because she's more miserable or maybe because she's more normal?! Her sense of humour seems quite dry, I think she was joking when she said she'd be affectionate for 5 min, and she genuinely thought her and Danny were in a good place from the night before. Arabella was smug and stirring but I can see how some would interpret it differently!