I think the problem here then is that it's not really very believable. Plenty of people have messed up relationships with their fathers and then go on to have intimacy issues, but they don't act like Kuro. They don't have weird one-sided, platonic friendships that they let the other person call "a relationship." It'd just take a lot more to explain what on earth is going on.
Not sure what you aren't getting here, it's spelled out pretty clearly in the narrative. Kuro's gone and derived from her family circumstances some extremely cynical and skeptical ideas about romance (debatable to what degree her intimacy issues stem from this, and not really important anyway) and it's taking her some time and discomfort to revise them is all pretty much. Ch 23-24 is just about entirely about her and others reflecting on it and how she's changing.
And then again, thematically, what's this have to do with Uta and Kaoru?
My guess for the authorial intent there is "compare & contrast" - specifically how the brats are proactively trying to make their relationship work by talking things out and trying to adjust for the rough patches (in practice mostly amounting to Kuro being rather difficult girlfriend material but hey, she's trying) versus the adults conspicuously failing to even try any of that, instead bottling things in and generally failing to confront and address their various issues.
last edited at Sep 30, 2019 2:07AM