Bones smiled back... From what she said, she did not want him around, wanted him gone... She also seemed sure that she would win, and that she could thus drive Bones away...
But he had also long ago learned to not take what humans said at face value. Perhaps she was also saying that, so it would appear that she did not want him around... But she was really just looking for an excuse to seem that way, when in reality she wanted to spar...
Either way, Bones would just have to make sure that he won. Though it was hard to say how it would go... He did not yet know how good she really was with her weapon...
"If ssat isss what you really want, and you win, sssure I will leave you be..."He said this, drawing off at the end of the last word a bit... Though he purposely did not complete the sentence, and say what would happen if he won... He doubted she really had anything to offer him, besides a partner to spar with... He would let her mind race to conclusions in the meantime, and let her try to think of a suitable exchange if and when he won...
He drew his gladius, in one swift motion, taking it off of his back... There was the subtle slick of metal on leather, as he drew it out... He would have to be careful in this... As he knew, and thought of the situation...
Her weapon had the advantage of a longer length, since he was using a shorter gladius... However his weapon was better balanced, and of finer make... Though since they were only sparring, his weapons ability to thrust and stab was mitigated... Since that usage would be deadly...
Though in real combat it would be an advantage, since a longsword could not stab to well, or put out to much force behind a stab, due to its longer length, and more flexible nature. A gladius could stab since it was shorter, and was designed for doing so...
Ready to fight, Bones came at his partner all at once, swinging his gladius across her chest. He did not expect it to strike, but it would force her to react, most likely to either block his blade, or to dodge it if she knew how to. But more importantly, it would allow him to judge her skills better, by how she did avoid being slashed.
Though he also was careful to not go at full strength... Even in his weaker human form, he was easily more than twice as strong as a human... If he were to go full force when she tried to block him... That might end the fight right there... He would try to hold back his strength, to only a little more than a humans...
Assuming she managed to stop the first, Bones would continue on, doing a few one handed slashes at her, giving her the chance to stop them, and for him to better gauge her skill... Along with keeping her on the defensive.