Yuri Project
joined Jul 14, 2016
I don't really know if the issue is maturity. To me, this fight is refreshing because it's so patently ridiculous. It's not even based on a legitimate misunderstanding. Nanoha got a little jealous and then decided to act upset, and then Chidori actually got angry in response, and now neither of them is willing to talk to the other. It's impossible to take seriously.
There's another story, Yuunagi Marbled, where the main character isn't really mature, but she's open and honest with her feelings, so she defuses a lot of potential drama, even though the other girl is kind of a moody bitch (but we still love her).
In general, in dramatic stories the characters' arcs often come from them being forced to confront a part of themselves that they could not accept. When that plays out in a romance story, you get moments where the characters are incapable of communicating their desires or needs, not because they can't communicate but because they are refusing to acknowledge that they have those needs/desires. I think a lot of standard romance plots fall into that category. She tries to keep some distance from her partner because she's afraid to acknowledge that she truly needs another person. He pushes his partner away because he's afraid that anyone who knows his true self will come to hate him. Etc. When it works, the characters have issues we can understand and empathize with, and the drama is a natural result of these inner conflicts.
But I think sometimes the superficial elements of these arguments are copied over without a strong foundation in the characters' psychologies. Then they seem to come out of nowhere and the audience is left feeling like the characters are acting like immature children.