The other Tingyun is actually a heliobus. If someone asked her this question, she might actually be able to answer it.
After the Heroic Spirit Tingyun returned, Yukong told her many things, including the fact that someone had impersonated her.
Moreover, the person who impersonated her was a Lord Ravager and a heliobus. Perhaps asking her would make things much simpler for Ruan Mei, who wanted answers?
Chapter 319