Well, people will know that they are dueling. So what? They won't see it, they won't know how serious and close the fighting was, they won't know who the winner was. They will only be able to speculate and they will speculate regardless, even if Ling Qi refuses a re-match. Actually, don't you think that Ling Qi (and CRX) would loose more face if she refuses to fight him?
The bolded part makes little sence to me. When I spoke about him being truthfull I didn't mean that he wouldn't want to lie to us, the question is, could he?
Ling Qi has raw Empathy skill rating of "C" which is firmly average, but there are probably some techs and arts she uses to help with finding lies, and social cues (
@Black Noise help me out here please? Front page is scary)? She constantly notices things CRX would very much prefer stayed hidden and CRX has much better poker face than Ji Rong.
Basically, I belive Ling Qi is a better face reader than Ji Rong is a liar and Sixiang is better than her still and they didn't find anything suspicious afaik either. Your concerns that this is some kind of standart young master (TM) vengeance set-up on Ji Rong's part are unfounded.