I can agree with the fact his memory get erased each time he goes to sleep, but that doesn't take away when you visit ya gf and she only opens the door sticking her head just in the opening and see her head constant rocking like something pushing or pumping against her, you can wire that to she is acting out of normal behaviour, I would then just push open the door and catch them both. Another such moment is where Asuna sees his look alike having sex with a blond girl, first of all it ingame, ingame most people strive to look like someone else, either more beautiful, or other sex, or humanoid cute or even like their idols, so it not abnormal to find someone look alike, but to right away link it to he is cheating on me is silly, any normal girl would just busted into the room and start yelling at them, throwing items at them, to then find out it wasn't him but a look alike. Maybe i'm just not used to stupid people, but that the main thing bothering me in this vn. Another example, standing close to your Asuna and Inoda, exactly know it them as your heard their voices, and then hear them moaning in sense of sexual moaning, which guy can't wire it something happening between them both that shouldn't and try to stop it or least try to catch them.
Another thing that would make this vn more desirable is the more Asuna mess around with Inoda, the more she start neglecting her looks, like becoming more the same as Inoda, that basicly what always happen when beautiful people spend with ugly people, they become the same in looks. Like they say that dog looks like his boss or when a you sleep with a stray dog, you become a stray dog.