THIS. That's why I really can't hate the seme
Just to add, the seme MIGHT or MIGHT NOT be a sadist. I am confused as to why some people insist with certainty that he is one just because he wants the uke to cry. The explanation of Tovah below: http://www.mangago.zone/home/mangatopic/1319665/ is what I agree with. He wants the uke to let out the feelings he wasn't able to express throughout the years. He carried all those feelings and wounds which made him feel miserable and turned him to the person he is now. That's why the seme wants him to cry, after all, you won't be able to turn a new leaf if you just try to forget/escape the past, you must be able to get over with it.
If you have a different interpretation, please feel free to comment below. I love hearing opinions especially the different ones. Human behavior is something no one would be able to predict perfectly no matter how hard they try :)))
By the way, it's a relief that some people agree with me, I thought my way of thinking has kinda become twisted because of reading too much dark/unique/rape yaoi but I guess I am somehow still on the right track （/TДT)/
I get the part that the seme was a jackass for refusing to apologize. For the other thing though, which is when Chiharu didnt stop even if Yuu said to do so when in fact Yuu was the one who initiated, I don't know what to think of it. Because in other manga, there are A LOT of instances when the Uke says stop but the seme doesn't and I don't see anyone commenting shit about it. Heck, some people are even saying "you know you really want it". And don't even say that they are actually enjoying it because I have read mangas wherein they really said THAT IT HURTS SO STOP but after a while it got better that's why what just happened was brushed off. In real life, it's hard to know what someone really wants if they don't say it that's why I actually don't know how someone will be able to distinguish "stop" as "I actually want it" or "It fucking hurts. Stop." So, I don't know if the argument that the seme is a bullshit for not stopping works.