So his so obsess with his son that he actually kill the cat I mean this is just a theory b...

So his so obsess with his son that he actually kill the cat I mean this is just a theory but the Time when ende said 'I love you' to the cat the cat died the day after

To be honest ende is more scary than his father, his so full of emotion and grim reaper might kill everyone if his beloved son cry even a little