
So what is Roxana's relationship with Dion now? Is he like her 'dog'? But then how? I don't really know, anyone, please (even if it contains spoilers, idrc), explain it to me T.T

It seems really sexual but
SPOILERS
Dion just likes that Roxanna is the only one to still have emotions in this family. He saw her cry once and it both reminded him of how he is no longer intact with his and wants them again as well as how precious protecting those emotions (in his own fucked up way) is
I think that Hades is being controlled right now, as that white speckled wave that sometimes appears when they used magic went from the priest to Hades. Also, there is no way that he wouldn't fight when he knew that the MC almost died.