
How can Ranmaru claim he loves her when he's flirting with other women, kissing them (I don't care where), taking their numbers, and planning to meet them later? Is it impossible for him to just say "No thanks, I have a girlfriend"? This is just like her horrible dad who claimed to love his wife and family while having multiple affairs, never being home, and saddling them with a massive debt when he died. Actions speak much louder than words.

This is just an issue of poor communication all around. I understand that Maya is more comfortable with non-verbal expressions of love, but sometimes you have to step out of your comfort zone to reassure your partner. On Nemu's end, he needs to be more assertive in what he wants and needs instead of backing down for fear of making Maya angry. A short conversation and a simple "I love you" from each of them is all it'll take.

Why can't they just date long distance, do their things, stick it to Mari in the process, and then link back up in 2 years? What about that is unreasonable? I think that's the most reasonable thing I've ever heard Junyoung say.

Long distance relationships are way too hard, especially if it is for 2 years and they have an age gap (trust me), it could be done, but Junyoung is still too young. I think he needs to live a little bit more and get more mature before he starts a serious relationship like that. Just my opinion tho ヽ(´ー`)┌

I honestly don't think the wife deserved a happy ending. She didn't care about anyone but herself and, as a result, did horrible things to people with no remorse (cheating in the first place, using Yeon Woo and getting him sexually assaulted and then killed as a result, trying to kill Ha-ri by pushing her in front of that bullet). You can say she cared about her husband, but she even said he wasn't allowed to be happy without her so that isn't entirely true, either. And then she just planned to walk off and live happily ever after without taking any responsibility for anything?
At least Ha-jin, who also has a long history of being abused and assaulted by that crazy president (and probably has a troubled past if he became a hit man), had a change of heart but Si-yeon just kept getting worse and worse. She didn't even care when Yeon Woo was supposedly shot to death in an elevator. She was just glad no one could back up Ha-ri about the affair anymore. She hasn't learned anything and never felt sorry for any of the people she hurt. I'm in the tiny minority of people who hated her through the whole thing and was glad when she wound up dead.
Does no one in manga know what rape is? I'm not criticizing him, I'm just genuinely concerned that he doesn't seem to understand that someone having sex with you while you're passed out drunk and think they're a different person is a crime.
I don't think it's because he don't know what rape is, but the fact nobody think they can be a victim of rape. A big part of it also come from victim shaming. He knows it was wrong of is teacher to do this and he feel awful about it, but "he shouldn't have been drunk in a house alone with him and seduced him" <--(not my thought, to be sure i'm not misunderstand)
I also don’t think he remembers the part where the prof forced a ton of alcohol into him. If you leave that part out, Youngmin got drunk, thought he was with Jungwoo, and asked prof to have sex. I find this much more realistic than most other rape manga. The prof knew he could get out of it by saying Youngmin asked for it and leaving out he forced alcohol down his throat.