Utter, terrible, disgusting hate that balls itself into his heart and stays there. MX stokes the darkness in his heart in more ways than one, despite his resistances, and he hates what the man has done to his friends and what he can possibly do to them another time. He doesn't believe he's of any use to MX beyond that of another corpse, and BOY IS HE WRONG. He'll go down fighting next time because he refuses to run from this guy any longer.
Also, when he canon updates, he'll be gloating about a particular battle with his younger self and how he beat him. :T
SPOILERS
Utter, terrible, disgusting hate that balls itself into his heart and stays there. MX stokes the darkness in his heart in more ways than one, despite his resistances, and he hates what the man has done to his friends and what he can possibly do to them another time. He doesn't believe he's of any use to MX beyond that of another corpse, and BOY IS HE WRONG. He'll go down fighting next time because he refuses to run from this guy any longer.
Also, when he canon updates, he'll be gloating about a particular battle with his younger self and how he beat him. :T