There is the fact that Gwen danced with several mares at the Gala (and probably flirted with quite a few of the native ones), if that's of any interest. Otherwise, She's talked several times about how she beats people up for a living, so there's that.

Oh, and also: Cecil might have spotted Eggs Benedict doing something suspicious, but not more than "I saw two ponies in the garden having some sort of clandestine meeting". He doesn't know what it was for or what was said.