Also the fact that the brother is cheating sounds a bit convenient. Would she ever dump him for Uta if he was loving and considerate to her? I very highly doubt it.
You always need convenient things in manga in order to advance.
Yes you do, but this is different. I don't like the idea that if they end up together it will only be because he was cheating, and not because Kaoru actually prefered Uta over him.
Kaoru is a needy person, so it would just make me think she's even willing to be with Uta to not be alone.
Can you really blame her for that ? Kaoru has no family so Reiichi and Uta is what she have as a family and now one is leaving and the other is presumably cheating on her. She is not "needy" she is alone.
I don't blame her and her actions are understandable, but not everyone in her situation would react like that. Sometimes we must feel really shitty to be able to move on. It would be pretty difficult for her to stop ignoring reality, but she will be forced to eventually. Ignoring the cheating won't make it go away. She us weak.
Uta on the other hand realizes that she has to suck it up so she can move on and not get trapped in a miserable cycle, despite her situation being very difficult as well.
Also there are plenty of men out there to date. I mean, if you really need to cling on someone, you can still find a better choice than a cheater and someone who married you out of pity.
It just seems like she was trying to get from Uta what Reiichi didn't give her.
And yet you blame Kaoru. If Reiichi was a good husband, Kaoru will never feel the urge to have someone
How did I blame Kaoru? I only said that she wouldn't dump him for Uta if she wasn't forced to. Being someone's second choice (aka rebound) doesn't sound appealing at all.