@Arkal97 Well cheating is cheating, no matter how you slice it, even if you're under the influence or not.
To be honest, I don't hate You-chan as much, but it's easy to see how some peope can still hate him, even with his past and reasons explained. He's not an asshole, but it's pretty clear that his decision to not be as blunt about how he felt from his wife putting pressure on him for more intimacy put a dent in their relationship, something that he didn't try and bother to fix until recently. Sadly by the time he decided to be more honest with how he felt, not only did he already make a ton of excuses as to why he didn't want to be intimate before (even faking having ED), but he also slept with his co-worker, so it can come off as nothing more than an excuse to put the blame of how it all went downhill on her to relieve the guilt of cheating off of him. But to be fair to him, Michi does come off as clingy and needy a lot, so he has a point.
As for Niina, it's very clear that whatever he and Kaede had is no longer there from his side. How he'll handle it and Kaede's reaction to it all is something we'll just have to wait and see unfold, but it'll definitely be worth the drama.