Honestly, I like that weāre only now seeing Demetri feed into anger and make decisions heāll probably regret later. Now, after Hawk has already had his redemption arc and rejected Cobra Kaiās ideology. I donāt think any sane viewer would have blamed him for going a little dark after Hawk broke his arm, but he didnāt. In fact, Demetri forgave Hawk extremely easily. Heās better than me, I donāt think most people would be willing to look past that so quickly.
So why now? Why does MIT hurt more than all the far worse stuff Eli did when he was in Cobra Kai?
Demetri has been learning Miyagi Do since s2. Before that, he disliked Cobra Kaiās way of doing things and only really clicked with karate when he was taught balance and self defense. Demetri is probably behind Sam and Anthony as the teen character with the least amount of experience in Cobra Kai.
But thereās a reason all the adult characters keep talking about balance. It canāt just be either all rage or all forgiveness. I can imagine Demetri harboring some pent up resentment over Hawkās actions, buried so deep he doesnāt even realize itās there until they have another fight.
And this time, itās not Kreeseās brainwashing. Itās not that his best friend was angry about their lots in life and lashed out to extreme extents. Thereās not a greater bad guy to point at behind Hawk, thereās not even really a bad guy. Theyāve just been through a lot and theyāre different people than they were when they first picked a college. Eli is telling him, āYouāre my best friend but weāre never going back to how we used to be. We cannot go back and Iām not sure I want the same future as you.ā
And this is after Demetri gets his best friend back. Apart from everything with Silver and Kreese, his life is going relatively uphill; Eli is good again, they have plenty of other friends, heās dating Yasmine, and heās learnt karate. Other than his friendsā success, he really isnāt looking for more than to preserve what heās already gained. Losing MIT with Eli is a curveball he didnāt expect, just another thing heās supposed to accept and move on from, and it happens when Demetri thinks heās found security.
And then there Demetriās motivation for wanting to compete in the Sekai Taikai. Itās not ambition. Demetri already got what he wanted out of Miyagi Do, he knows how to defend himself. In past seasons, he stayed because there was safety in numbers and of course he was against Cobra Kai. But now that Kreese is out of the valley, Demetri is still with the dojo because all his friends are there and he has developed a genuine enjoyment of martial arts. He doesnāt really want more. He says multiple times that heās okay if where heās at is the farthest heāll go in terms of karate.
Demetri is comfortable being a side character. He doesnāt think heāll ever outdo the core four or Hawk so he doesnāt see a point in trying. He wants to ride out the rest of his senior year with the dojo and then go to MIT, where heāll do what heās always been good at, where he might actually excel.
And Yasmine calls him out on this. They bonded when they were both at their lowest and she dated him while Demetri was helping the fight against Cobra Kai. She does not want him to throw in the towel too early and grow stagnant.
So, at first, Demetri really trains and tries his best to get picked for the Sekai Taikai to please her. But then Hawk tells him heās unsure about MIT, and, āYou chose my path?!ā There was such genuine hurt in his voice, but Demetri could never hurt Hawk as much as Hawk hurt him. And Barnes said you have to be ruthless to get into the Sekai Taikai, yet Hawk showed him mercy, which Demetri exploits.
Demetri is clearly unsure of his actions when he takes the flag and runs. He seriously considers helping his best friend up. But when Eli decided to be selfish, he did so much damage, so why canāt Demetri be selfish this one time? Why canāt he lash out and take the victory he wants at the otherās expense? Itās not like he does anything worse than what Hawkās done to him?
Sometimes you just need to hash it out and make up. Itās why Sam and Tory couldnāt spar properly after becoming friends; they realized they liked each other so they didnāt address their baggage. But because they didnāt, they felt at risk of falling into bad habits whenever the past finally did catch up to them. But they talked it out, they apologized for the things they regret, they brought up lingering resentments. Demetri wanted his best friend back so he forgave too easily, and now that theyāre fighting again, so much past hurt is being brought to the surface.
Now that Cobra Kai is out of the valley, Demetri has started falling back to old habits. Itās been noted that he does most of the talking on Eliās behalf in the early episodes of s6, his resignation about the Sekai Taikai reminds me a lot about his apathy towards high school in s1, and he assumes theyāll still go through with the college plans they made before their falling out. I do think Demetri genuinely wanted to be a part of the tournament but resigned himself after the team number was announced. When Hawk came clean about applying to MIT, Demetri finally decided to take more.
The show is about balance, itās about finding a middle ground between defense and offense, Daniel and Johnny. I donāt think Demetri is gonna have a full blown villain arc or join Kreese or anything overly dramatic (weāre already getting that with Tory). Heās been loyal to Miyagi Do for too long. But thatās kind of the issue, he never fully let himself get angry at Hawk, and this is the result. Like Johnny said about Tory, if it takes a fight to process all your emotions, then fight, because holding it in will only make everything uglier.