Normally Maddy would get super pissy at somebody ordering her around! However, this is NOT a normal situation, so she'll just defer to Levi and let him tell her what to do. She'll go after the boars he tells her to go after and she'll cover him if he says to.

She will also let him protect her when he needs to, since she's still kind of freaked out by this combat stuff and she's not going to argue with anybody who wants to look out for her. UNLESS it seems like he's about to die without help. Then she'll jump in and try to save him, whether he wants her to or not.