@givemersspls: You asked me why he was a straight-up dick vs not really a dick, then you have me be specific to just Ma-Ri, and you didn't need specific examples, just general ones, and now you say you do?
Just for the record, you're not being consistent. But that's fine, I got no problem obliging (Keep in mind I can't direct to pages since this is long strip format):
Chapter 1: The kid is dismissive about his dad having diabetes and criticizes the fact he doesn't remarry, showing no concern for his father's welfare
Chapter 2: While (rightfully) upset about the arranged marriage, his yelling and physically aggressive behavior towards his dad is unacceptable.
(Didn't want to talk about the dad? Too bad, Being a dick doesn't limit itself to just one person. If you're a dick, multiple people are affected. BUT! Per your request, I'll do just Ma-Ri now)
<skip chapters to where she is fully exposed>
Chapter 8: Forcing her to sell her stuff (Controversial, I know, but because she had the father's permission, this isn't actually an issue. Instead of forcing her to sell it away, he could have just cut them off until she earned them back)
Chapter 10: Destroying her stuff for personal satisfaction (Again, controversial. Yes, Ma-Ri is reverting to old ways, but this is still too extreme no matter how you look at it, especially since he said he was planning to resell it. Completely unnecessary and cruel, not to mention an active waste of money.)
Chapter 12: Trying to hit Ma-Ri with a bucket in revenge (Yes, yes, it really was an accident on her end and he didn't believe her, but striking a woman? I don't care who you are or what your reasons are, that's just not cool. Serves him right falling off the stairs like that.)
Chapter 13: Blaming his injury on Ma-Ri due to his action and reaction (I know what you wrote, but re-read the chapter. Who climbed those stairs? What was his aim? Did he look where he was going? His injury was HIS fault, no matter how you slice it) and staying focused on it despite other people having a life (Seriously, who do you think pays for the house, kid?).
Chapter 14: Having the absolute stones to pretend he WAS being nice to her. (Should also point out he didn't try to understand her situation until the next chapter)
Chapter 15: Realizing his past actions from this past made him the bad guy (Aka, admitting himself he was being a straight-up dick).
I think that's enough evidence. I can go more, but this wall of text is starting to look a little too tall and it's pretty clear there's a pattern.
I need to once again stress that while his situation is pitiable and his frustration for all these issues is very understandable, his reaction and behavior to them is what makes him a dick. But (and I really feel you keep missing this point I keep saying) he's also a middle school brat. He's still got growing up to do. You ever met a teenager with his emotions in control? I haven't. But at the same time, his overall attitude towards others, not just Ma-Ri is what makes him a dick.
I'm not changing my mind on this and I'm not trying to change yours either. I gave my opinion and nothing else. That's why I said we should agree to disagree. I'm not going to press this any further, nor should you. This back-and-forth wall of texts between us is getting old and will just go on forever, here or DM. I'm ending it here.