She said herself she let her guard down and she doesn't seem like someone who had give her consent.
Aya got drunk on her own will in a other chapter to have sex with Risa. So it's possible there wasn't an assault. I'll personally take it as that, and that the author didn't intend on making it seem like a rape and didn't think much about it.
She is simply too deep into the closet and has her own issues (lack of self confidence) to make a move.
Might be true too but that's because she is too afraid of being rejected and get her relation with Nozomi change for the worst. She doesn't want take the risk to ruin their relation.You're like Risa, you're just frustrated that Miyu don't try anything and think she should have done something sooner. But i prefer have their relation working like that, rather than having Miyu forcing her way into Nozomi, especially when you see how Nozomi was troubled after founding out the manager was a lesbian.Now imagine her reaction if Miyu had come to confess her feelings.It would had been probably disastrous with Nozomi probably hurting Miyu, who has already so little self-confidence.
I don't say she should have forced her way into Nozomi. There's a middle ground between the extremes of never confessing and.forcing her way, and Miyu is the other extreme. She had already decided she would never confess her feelings. Also I can't feel sorry for someone who did that on themselves. She has decided to never talk about her feelings and on top of that support Nozomi in finding a bf.
Anyway, Nozomi is the typical airhead in this story and doesn't have many layers imo. That's why I find her boring. I don't know what we're trying to conclude here. That's just me, some others might like her, there's no universal truth.