Manga Update :-
Chapter 52 had Hilsher accepting a mission, but opting to executing it himself instead of deploying Triela....
Spoiler:
He manage to complete the assignment but not without some hitches. Of course, Triela got upset after she finds out what Hilsher has done. She threw a tantrum, asking why didn't he take her along and questioning "isn't fighting is what I'm meant for ?"
To that Hilsher answered "You role is to live. Fight and live long if and when possible" After hearing that, Triela crys like the girl she is and runs out of the hotel.
PS :- Moe meets Gar in Chapter 52 ! A Triela in a min skirt with her hair down in Tsun-Tsun mode throwing a tantrum, crying and running away is Moe. A Hilsher in l33t Interpol mode, hacking magnetic door, gunning people down even when one of the is behind doors = Gar.
Proof :-