Armin saw you crying, he knew you felt guilty because you rejected Kayno's love, the child who loved you, Armin realized you were crying under the tree at night, He immediately moved away from his other friends who were discussing the mission to steal Mrs. Azumabito's ship from the Yeagerists. he came to you and immediately hugged you and rubbed your head.

"Nia...I understand what you feel." His voice is soft.

"I know that child really loves you, when I see everything he does for you..."

"When you're really just in pain Some mistakes get made That's alright, that's okay In the end, it's better for me That's the moral of the story, babe.." He tries to calm you down, he knows you feel bad because you have rejected the feelings of someone who always accompanies you, Kayno.