I put off on reading this a while ago (I think the hot springs chapter) and came back to what feels like an even bigger mess, but I can't say I hate it. The chapter where their mom showed up out of nowhere was very interesting - revealing she was involved in Kaoru's mom passing, why she's never around and a little about their father. Considering Uta says "he is the way he is because of you" I wonder if we'll be seeing him any time soon. He is apparently on board with taking Uta in as long as he and their mom get an official divorce, so I'm really curious about what kind of person he is.
I really wish we had seen how the confession went or what Kaoru's actual reaction was. Uta says she just smiled, but considering how she hesitated and looked really unnerved when Uta asked her if she really was okay with letting Uta stay despite knowing her feelings and then emphasizing that she considers her important family, there has to have been more to it. Knowing Reiichi is probably cheating and now his little sister loves her, did she feel like her ideal life was falling apart? Other than those two I don't think she has anyone else to go to if things truly go south, so maybe she's trying to keep things from getting to that point by letting things like cheating and even a confession slip by.
There are still a lot of interesting things going on, but one thing I can say I really dislike is how often we go back and waste so much time on Kuro and Miyabi's drama. On her own, Kuro is a pretty cool character and I like how she's blunt when it comes to giving Uta advice or asking what's on her mind. But when it comes to scenes with her and Miyabi or Konatsu I just can't enjoy it, and I wish we'd stop going back to give their dating-but-it's-complicated-so-not-really situation focus when it doesn't really contribute anything to the main story.