I'm not clear on what scene you're referencing...are you proposing to get you, Akane, and Ino in a room and have them talk Hazō out of caring so much about Akane? That sounds miserable to write, and also like something that Hazō wouldn't be willing to do.
"I know," Ami said. "Akane has so much faith in you it's frankly unhealthy, and you should be doing something about it before she ends up like Kei."
I'm referencing this part, and asserting that Hazou's realized that he and Akane are headed towards an unhealthy romantic relationship that mirrors Kei and Ami's familial relationship (blind trust and almost conscious blindness on Akane's part, leaning on another for their sense of morality on Hazou's that grows into a "I can sell me soul, as long as she keeps hers").
[*]
It's my opinion that, perhaps, they should sit down and discuss their unhealthy coping mechanisms in an attempt to prevent that possible future from ever happening. After all, Akane's original concern (and the one she asked for support with when she and Hazou resumed dating) was to keep from getting subsumed by Hazou's ideals and ambitions. She wanted to remain her own person.
However, Hazou is also a 15 year old boy, placed under an immense amount of stress that should've broken his mind a thousand times over. If Hazou-pilot retreats into unhealthy codependency and refuses to dwell on the similarities between he and Akane, and Ami and Kei... that's realistic.
He's a teenage boy with a single mom, for most of his memory Hazou has suffered from financial insecurity and worried about his mother's survival on a regular basis (who knows what sort of attachment issues that might've caused), ended up getting in trouble with the Yakuza to put food on the table at
Academy-Age, constantly worried about the Kurosawa Clan's machinations, then his sense of safety was betrayed when the Swamp didn't work out, then he spent 2 years on a constant mission, he's been playing family therapist for his found family (including Mari, a 20-mumble woman) for 2+ years...
and that's not even counting everything that's happened since they joined Leaf.
[*]In my opinion, Kei's advice to Akane post-Haru was what exacerbated Akane's trust in Hazou to unhealthy levels. She was furious with Hazou's lack of compassion and betrayal of Uplift, and Kei (perhaps unconsciously) turned it back onto Akane and made it a guilt thing. "Of course he's sociopathic, he just absorbed another of the Sage's Seals. He's having Out Moments again. You're telling me you didn't notice? You're his girlfriend, his partner, his teammate, and you're supposed to be his moral center, and you didn't notice that Hazou's having Out Moments again?" Hazou even notices this changed behavior, and has mixed feelings about it, saying that Akane "had been sticking closer to him than ever before."
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Edit: All of this is to say that,
if my understanding of things is correct, I'd like to try to work on these issues before they grow insurmountable (though I'd be willing to wait until a Vel chapter if you'd much rather not be the one to engage with it). The above is intended to be a possible narrative handwave y'all could use if
neither you, nor Velorien would find joy in pursuing such a thread.