For a moment, I didn't understand what she is saying.
The sword. Does she mean that she wants to use Paul's sword?
I get the feeling that if she learns half-assed self-defense; on the contrary, she'll only end up ruining her body. But this is that kind of world. It'd probably be better to know swordsmanship. Even if it were only a small strength, it'd be better than nothing, after all. The problem would be whether I'd be of use as a teacher.