
Nah I figured Arlo would be shaken. With his power being a barrier and when someone who tries to attack him while inside the barrier will receive reflective damage, he's literally untouchable. To be beaten to this degree by someone he thought was a cripple and said cripple actually wields a god like ability, he's shook to his core. And since Arlo knows about John's past and how John took down his whole class, Arlo's probably worried he's woken up a sleeping dragon and that John will do the same again. It's satisfying tho to see an arrogant dick like Arlo fall from grace, bless John.

No Arlo realized John wasn't a cripple long before this. That's why he took him to the Turf Wars location in the first place. To get him to reveal his abilities. That's why he wanted the info about John taking down half his class with his powers.
Also, John was the one who didn't want Arlo to talk about what happened between him and the other students. So unless ARLO says something John won't either.

Isen was the only one to know about John's past. Arlo didn't know anything about John, other than the fact that he wasn't who/what he was telling everyone he was. Isen kept all that information to himself--he refused to tell Arlo anything about what he discovered about John. But, I do think that you are right. Arlo will be worried about the beast he's awakened. Fun stuff XD

I don't think he would really find it horrifying though...? But I'm just guessing. I'm not really saying that I'm right. It may have something to do with what we talked about earlier though. How John's father wrote that book for him because he was concerned about his son repeating the same mistakes he made over two years ago? And John may feel disappointed that he's not meeting his father's expectations.

Mm... Maybe "horrifying" is too strong of a word. Disappointed is better. Like, once John saw and heard Sera, the gravity of what John had done hit him (thus the flashbacks of the beat-down he tolled). And, after having failed, he finds himself pathetic for having lost his cool. It seems like he worked so hard to not be the person he had been in that other school. I don't know if it's his dad he hates having disappointed, or himself. Since all his woes are directed inward, and not focused on his dad, I think John is only thinking about how he failed himself.
OoOoOohhhh. I was thinking ;p, what happened to John in the one year he was away? He got kicked out of his old high school two years ago, but joined his current school only a year ago. What happened to him in tht year? Did he, like, go in to get 'reprogrammed' to make him less of a threat? Maybe his mom is part of Amber, and came to mellow out his brain, and that's why he was calmly able to go back to school?
I noticed that, while John is pretending to be a cripple, hates when weaker students get bullied, and is stronger than everyone x50, he does not think to join Amber. He likes what they do, but he won't join them. I find that pretty weird.

He cant really join them after all. How will he take down criminals if he always fisrt need to get attacked first with powers to use his own power. These people do get famous after a while so there would later find ways to compat them.
You know, of all the reactions I thought Arlo would have, I never thought he would be shaken up by his fight with John. Of course, this is an observation from Elaine, but I think she's known Arlo long enough to know when he's scared and not pissed...maybe. Who knows, Arlo may be a good actor ;p
I'm thinking that Elaine is how Sera gets involved/discovers what John can do in later chapters (because of the phone call). I do think that Arlo will keep John's secret, but, because of Elaine, it won't be a secrets for long. Having been undefeated in the Turf Wars, she'll start to ask questions on who took Arlo, Mei, and Ven down. I'm sure she'll be even more curious when the 'victors' do not show up, and no one comes forward to claim the King (or Queen ;p) of the Turf Wars title.
More and more I'm starting to think that Sera is John's moral compass (If this was The Walking Dead, you know Sera would die). He had no problem with what he had done to Arlo and the other two before she showed up, then once he heard her voice and saw her face, what he had done came crashing down on him. The worst part is, there is no update next week (T^T)