[ This was almost like telling a Tieren pilot that he cannot fight Gundam unless he is in a Gundam. ]
I want you safe as well. The both of you.
I understand your wanting to help her and being out there on the battlefield; but perhaps you can do so by yielding into giving Saya some peace of mind, that her friend is not in the way of harm.
No, it's not fair. Not for you, not for me -- and neither for her, being faced with her family crisis.