HELLO AGAIN LUCY :D I will just discuss the chars who are most likely to ~plot~ with these two:
MORPHEUS: HADES HADES HADES. He kinda likes anyone who lives in his underworld, and y'know, the lands of sleep and death sharing space and all. He also deeply appreciates other people who are v. hard workers & dedicated to their mythic function. He will be very fond!
PARIS: LOL POLLUX. Pete is one of Ellie's older brothers, aaaand I am not sure how he feels about the whole Paris thing -- on the one hand, he feels really sorry for the guy for having inherited such a bad, war-stirring rep. And he would very much like for his little sister to be happy, though he isn't sure if she's ~meant~ to be with Alex or no. I guess we can say that Pete will make up his mind about Alex over the course of in-game, idk.