I think it was 5 minutes into negotiations (after kapikulu broke their word and started attacking again) that abay and nocti started talking loud in Turkish to each other.
You know how abay is, you know how nocti is. We wnt to talk with good intentions, giving you a chance after breaking your word on peace, but it turned into a turkish yelling fest from 2 sides so ozan ended the conversation.
Since kapikulu broke their word already, ozan went for the most honorable way left in his opinion by defending the honor of his clan.