You are a bit arch on her. SHe is a high schooler she is naive in nature and good hearted. And she have lot to learn in relationship with other.
And she wanted to take care of the situation with momo first before talking to her boyfriends and she had the right to do that. She is not someone propriety.
Unfortunately, Idiot-girl doesn't seem capable of learning from the previous rifts in the relationship caused by dirtbag 3rd wheels. It's hard to imagine that this story will be anything other than a progression of assholes that think they're better suited for her than the "boyfriend" and this moron giving them more attention than her "boyfriend." By the way, she's not someones "property" and she certainly does not behave with the utmost "propriety" in her relationship with her "boyfriend."
that have more than a single digit I.Q. including the uncle. Kusakabe-kun resuced the situation in a stellar manner, especially deftly manipulating the moron of an uncle. As expected, Idiot-girl did not tell her "boyfriend" what had happened and who knows how long it would have taken her, if ever, to tell him if Kusakabe-kun had not outsmarted them all. As usual, she was more concerned about the feelings of yet another 3rd wheel than she was about the feelings of her "boyfriend." Nonetheless, this does not mean that the Jerkoff 3rd wheel will no longer cause trouble.