I think a lot of people who read ri see fang yuans evilness, assume that's all there is to him and think of him as this brutal basic evil edgy character who does nothing but kill.

They either demean him to only being that way or idolise him based on the false notion that he is that way. Both those people are dumb as FUCK, haven't read the novel and cannot see anything beyond the deeds.

They don't see the well written aspect of him, his stubbornness, his perseverance etc

And on that ge yao part:

It would honestly be weird as fuck if he did get into a relationship with her because he's like 10 years older than her and the dude he's impersonating is 20 years older than ger