Truly don't get the reaction to Meguru this chapter, she hasn't shown a single ounce of disgust or judgement to Remu. Hell she was genuinely surprised when Remu called herself disgusting over the figurines, surprised that's how Remu sees her.
And it's not like i don't see that Meguru went into Remu's room behind her back, that is an invasion of privacy especially when Remu has been trying to keep her doll fetish under wraps but like, from the way Meguru has been reacting this chapter, she'd have to truly crash out at the idea "her" Azuki is getting chummy with her little sister in order for this to turn from a prying this secret open in a moment of weakness to the actual genuine malic she's already being ascribed.
Like sure Meguru is kind of the final boss of both Azuki and Remu's self-loathing but, she truly isn't malicious, and is genuinely trying to work through her own issues. Even if the next chapter sees her crashing out and hurting Remu/destroying some of the dolls (with Azuki's special face mold right there for the taking) she's just not the bitch some of you are pretending she is.