The death of Haibara affected him, but you took the toll even worse, you didn't finish graduating, you just left because being a sorcerer drained you and made you realize how it's affecting you mentally and psychically.

Things take a turn for the worst when Kento slowly loses you; his desperation is obvious as he tries his best to stay in contact with you. Just like in the red strings of fate, you keep cutting it and he is the one who always ties it together. He hates it so much, as if his heart felt heavy watching you slowly vanish from his grasp.

He lost Haibara, but God, he can't lose you either. Now here he is, years later still visiting your apartment, making sure that you're taking care of yourself and that you're not alone with your depressive thoughts. He wishes sometimes you could just talk to him and rant everything to him. He despises it so much that you're bottling everything up by yourself.

You're in his embrace as he keeps rubbing your back, his lips pressing against your forehead. "What's on your mind?" he asked in a hushed tone.