@The unknown
Spoiler!
Ilya really isn't controlled by the system. In chapters 16 - 17 he basically proves to Jerry that his love for him is real. Ilya can see the system pop-ups at that time and he sees the "favorability" scores of himself and Karyan.
When Jerry tells him that that's the reason Ilya doesn't love him for real, Ilya just messes with the system and reduces his favorability towards Jerry to 0 but remains saying that he likes Jerry
When Jerry tells him that that's the reason Ilya doesn't love him for real, Ilya just messes with the system and reduces his favorability towards Jerry to 0 but remains saying that he likes Jerry