Current chapter aside, considering the gap between it and the last chapter we got, I was "forced" to re-read it from the start, and I won't lie, I really like how Indou changed. It just shows here and there, but it's a nice thing to follow.
As for the current events, our dear auntie is obviously in the wrong, but I can understand why she's acting the way she does. It's a lot of feelings pilled together. It doesn't help that Indou looks so much like her mother, with a little bit of projection, our dear auntie probably sees her as such. It's most likely a little purgatory for her, where she has someone who, in her eyes, is like Chiyo, as if the past came to visit. At the same time, she tries to atone for some sins that she self-inflicted upon herself, while being constantly reminded of everything from the past, desperately trying to avoid the same thing happening. It's like she's attempting to rewrite time, without actually being able to do so.
Now again, I know she's in the bad here, but it's just... I'm not angry, just really sad about her. I do hope that things go well for Indou and Kagami. I also hope that our dear auntie comes to her senses as well. The latter is not because she's an obvious barrier between the happiness of the two, but because I do hope she herself finds some peace.