Tbh henry isn't wrong he is cop for a reason he didn't let himself sway by pleasure and confusion he has as brotherly love for Keith or more he was sweeping with his plans keeping Keith in dark but making him use della computer for information he purposely let Keith be used which makes him less trustworthy for Keith what if he put Keith in behind bar after della gets eliminated , Keith only freedom after he once got caught is della he can't trust law and order be his safe zone for being s criminal himself, and henry is not strong ti fight off anyone for Keith as much as della does that's where two sides become heavier choosing between them della is better option than henry .
If you analyze this story well, Henry is actually on the white shed. He's just torn between love, justice, and his heart as a cop. Our two favorites are actually on the darker sides, piece of sunshines. Hahahhh