You got hit by someone’s ability that makes someone into a child. Fyodor doesn’t show this but on the inside, he regrets that he didn't block you from this attack. Low-key worried about your safety because he isn't the safest to be around.

Thankful that you were a quiet shy kid because otherwise who knows what kind of chaos it would bring if you're an outgoing child. He normally doesn’t care about rumours but he can't be called a predator so he just referred to you as a lost kid and not his partner.

He first tried to leave you with Sigma because he couldn’t trust Nikolai to babysit you, but you hid away from Sigma. Let’s just say Poor Sigma, he is now questioning himself and so confused because he thought that you were a ghost.

After that, he tried to leave you at home but with the way you buried your head on his legs and hugged his cape, he just sighed and took you with him.