
I think Foreign God's chemistry with Seth is good, but only for the occasional side-tryst and not for a steady relationship, tbh... (even more so, if this guy turns out to *really* be Zeus). I don't picture Seth having an actual relationship with a guy who constantly annoys him (he doesn't find FG's shamelessness hilarious, like we do)

I kinda think their relationship is kinda like Yul Sooha and Gongju from the Sweet Swindler. Gongju is kinda like Jesus and Horus is Sooha. That's a poly from what I've heard.
Love-hate is a usual trope though, Seth and Jesus practically have "love-hate trope" plastered on their foreheads. It's a usual shoujo, or romance trope in general. A classic.
I'm not saying Seth or Jesus loves each other, it's just that, if they ended up together or having a relationship, that's their dynamic.
Yall see how Geezus and Horus temporarily stopped their fight bec Seth's condition is getting worse? The two aren't exactly saints, but they still prioritize Seth. They're even willing to tolerate each other for Seth. Geezus could've ran away just like that or killed Horus (cause it's implied that he can outpower Horus) if he really wanted Seth to be like really just his slave.
Also remember when he asked Seth to come with him instead, and he's also willing to break the contract with the Egyptian Gods and to take Seth with him even if means starting a war?
In Seth's eyes, it might be Horus who understands him the most, because Horus is waiting for him and believes in him and supports him on whatever he does. But Geezus guy isn't too bad either, it's just that what he wants is to take Seth to foreign land, and Seth doesn't want to run away. Those intentions both mean good to Seth, but Seth likes Horus bec Horus also wants what Seth wants.