FG is usually very goofy but in this split second his true colors showed he looked terrifyingly cold, it's so unusual to see that facial expression on him.
@asthasia OMG!! That's honestly not too far of a reach! Can you imagine if this whole scene is foreshadowing to Seth gouging his eye out? That would be brilliant!
But his goal is very clear, he wants to have a taste of Seth, that's all he cares he about. He is putting up with a lot of crap he doesn't usually deal with back at his homeland but he's not really complaining because Seth is simply too pretty.
Slowly but surely FG seems to be pushing Seth's boundaries further, it seems like he is always testing how far he can get with Seth until he reaches his destination. He is dropping very clear hints left and right that he is into Seth, but Seth isn't really having it.
FG is a very proud man who is very confident in his charm and good looks but seducing Seth turned out to be a bigger challenge than he anticipated. Seth isn't very impressed by it, but FG actually finds it more entertaining when Seth is "playing hard to get".
FG is a bit different than the rest, he is a god from a foreign land that was sent to kill Seth (we assume maybe by Isis). He arrived to Egypt during Seth's trial and after seeing Seth's face he abandoned his previous mission and decided playing with Seth would be more fun.
Ever since that day Horus kept Seth in his mind, and after meeting Seth again, and sharing a little kiss with him, it appears that Horus became confused and overwhelmed by his feelings for Seth. But he knew one thing for sure, he wants to be close to him and keep him safe.