Hayate is forced into a situation his only viable option is to do something illegal, unethical, and unbecoming.  After being called a Mom like figure to Nagi, Maria goes to the source on information regarding Nagi’s father.
Yes, you're just like a mother.
De verdad, eres como si fueras su madre.
Es verdad que pareces su madre.
Sim, parece uma mãe mesmo.