My DC (8) has decided they have an imaginary friend. I am sick to death of hearing “Marcus is hungry” (Marcus is the imaginary friend) or “Marcus wants to go to the park” or whatever other nonsense they come up with. I honestly don’t know what to do I’m sick of hearing about ‘Marcus’ and think 8 is far too old to have an imaginary friend. I’ve tried to explain to DC we all know Marcus isn’t real but they just start crying every time. AIBU to refuse to play along or even discuss ‘Marcus’ anymore?