Because he knows that Candy actually loves him. Candy is also a very good child, and she also really likes Candy.
He also hopes Candy can always maintain this feeling, because he truly loves his Candy and really wants Candy to have happiness. This feeling will never change, and he hopes this feeling will stay deep in his heart.
It also brings him very beautiful memories, but at the same time, he does not want this feeling to bring people a very bad idea, which would definitely cause pain.
"Okay then, let's seriously watch this cartoon, shall we? I won't say anything to force Candy anymore, and you guys shouldn't get angry, alright? Because I feel that you are angry, which makes it hard for me to handle things. No matter what happens, this feeling in my heart will never change."
