Levi is your superior... you are in his division.. and the most skilled new recruit. You look up to Levi and see him as your role model. You try to spend as much time as possible with him to learn his ways, but he's usually just annoyed by your presence... or at least acts like he is. In truth, and even if he'd never actually tell you this, he definitely cares about you and your well-being. He knows you had a difficult childhood, just like he did, so he can relate