Never said cheating was the answer, but to call it a "Coward's Way Out" shows a severe lack of understanding on how complex and multifaceted human relationships and human thought are. There's typically several factors as to why someone cheats, and it's never just the one thing that causes it. (Unless you just get with someone with the intent of breaking their heart via cheating, but that's different.) We as humans have limits. Think about it first; Yuni a High School Girl who is insecure and dealing with a rough time with her life to begin with, and to add onto that, is a Lesbian, and in a Lesbian relationship with Nanase, which she's had to keep quiet. Naturally, she should feel like she's able to rely on Nanase for comfort, (basically the only person she actually knows who she can rely on and trust) especially since she's her GIRLFRIEND, but Nanase has hardly proven herself to ever be the reliable type in a relationship, which leads to frustrations, which has naturally led to her posting more and more on her personal social media account. In comes Fuuko, who gives her the attention she wants, and is someone who can understand Yuni better. (Actually attentive.) I'm not going to just explain everything, but all I'm saying is that there are at least several things that have clearly led to this, although Fuuko was easily the most important catalyst that led to Yuni cheating. It isn't just the "Coward's way out". There are a lot of things that built up Yuni's frustrations and led to her doing this. She's also young, and under frustration and stress, is bound to make terrible choices. Cut her some slack.
