Boo

Writing advice needed ヘ⁠（⁠。⁠□⁠°⁠）⁠ヘ !! How to make this fanfic not misogynistic?

For context, I'm writing a fanfiction where two characters (A & B) are obligated to get married under specific circumstances. That's not the important part, though..

There's this other characters (C) who's canonically super in love and obsessed with A. It's mostly comic relief, but it's a major part of her character. It's also very clearly established that A basically ignores that most of the time, though he some times acts in a way that can be interpreted as leading her on, though I just interpret it as him being his usual comically-evil-yet-charming self.

Since I'm writing about A & B getting married, I have to write about C being jealous no matter what, and I even plan to include plot points of her trying to sabotage the marriage, like I'm sure she'd canonically do. But I don't want it to read like those "Ò=Ó stupid girl getting in the way of my yaoi!1!1!1!" Writing styles I used to see on my wattpad days.

The question is!!! How do I write about C's jealousy and sabotage plans without it reading in a misogynistic way? I already plan on having B be somewhat understanding of her distress and showing how A is kind of at fault for her being this weird about him, but I'd like some more (subtle or not) ways to humanize her, even if her canon personality doesn't leave me much room (⁠╥⁠﹏⁠╥⁠)