Originally Posted by
Andaeus
She gave Kairi a warning first, so I imagine Shirou would get one as well. And it's not like he goes around demanding every female character in the series act more girlish, it's really just Arturia. And that has more to do with the fact that she's clearly suffering from something to Shirou's mind, and he doesn't really know how else to deal with it. Mordred might not be "girly," but she's definitely lively in a way Arturia was not. I don't think he'd have much trouble dealing with her, at least in that respect.
I think a bigger issue would be that he's a lousy magus and can't supply much prana. I don't think Mordred is necessarily above killing him if she thinks she can net a better Master, say Rin for example. Then again, maybe not. I've only been able to read some of Apocryhpa.