They don't really have real scenes in the game, haha! There's a non-canon DLC level where Guan Yinping and some of the girls are taking care of Red Hare (as it's owned by Guan Yu at the time) and it goes missing. They search for the horse throughout the level and it's revealed that Lu Lingqi stole it because she thinks it's her birthright to inherit Red Hare. Yinping and the others drive her off and get the horse back.

So, in other words, Yinping probably doesn't even know her, but I just imagine Lingqi thinks of her as a rival of sorts, LOL. MAYBE I SHOULD PICK UP A FRIENDLIER DW MUSE 'cause I sure love Yinping.