To the people that are saying that Ji-tae's personality did a 180, the old Ji-tae is better, he needs to revert back and that he needs someone to bring him back to reality well... this is the reality that he has been facing since he met Maria and the the same reality that he's going to face from here on onwards, I mean do you guys honestly think that he'd be able to survive future encounters with that timid personality of his let alone stand in front of his father who is know to be a walking mass of pure violence, the guy pondered on whether he's right or wrong with every punch he threw at his opponents and even tried to find justification to his violence which only made him wander off even further from reality plus that kind of thinking reeks of weakness and would endanger him even further considering the path that he chose for himself.
Hypothetically speaking we never got a Tunnel arc then what? He keeps on training and keeps on being mediocre, stuck at a certain level which we all know know isn't gonna get him far and not even close to achieving his goal.
From what I saw so far Ji-tae is still far from reaching Fight Class 3, Let's compare him to his Fight Class classmates, they all have a presence in the room/ring and know how to carry themselves in other words "Fighters" while our poor dude didn't even have a mean face.
As for him getting snapped back to reality by another person, I think Ji-tae got his fair share of snapping don't you think(Considering he had his face smashed in half of the time which is normal unless you want this to be your average Shounen Manga with explosive growth and OP results) plus snap him back to what? believing and using the power of friendshiphelplessness ?
Point is Both Ji-tae and Maria are dysfunctional and there are even more dysfunctional characters than Ji-tae in the story but I'm not hearing anyone criticizing them while our MC started coming out of his shell and cussing a few people here and there trying to change the way he thinks, I believe it's one of those break it "Until it sticks" kind of changes and I like it.
Wow this argument(rant) is a mess so I'll stop here