I'd say the worst (announced in the spoilers) is coming right next chapter
Kekekekke "didnt even get that mad" famous last words XD. but very good point kudos for noticing this.! Seth djdnt plan on leaving horus really. THE fact that horus hid such impt info from him didnt affect him as much as the lie that horus love is fake AHH he was more heartbroken betrayed n devastated by that. But as a loyal and responsible guilt ridden personality he just want to check on neph n confirm the truth he learned because they had such a sticky ending their farewell confrontation was due anyway but poor birb horus in his fear misunderstood that seth was gonna abandon him smh.
This is painful but seth actually didnt even get as mad as i thought based on spoilers maybe this is when the ball rolls downhill loved seeing horus expression at the end though the hat can cover too much and take away from the personality