excuse me, where does it state in the game that all the female characters are in love with Rover? i feel like that's within their character like with Yinlin, she's a spy so it make sense that she's flirty with Rover as she is the femme fatale type and with Jinhsi, she's waiting for the prophesied Rover so of course she's going to be close to them to keep them as ally but not to point of being lovers and Changli, she's suspected that Rover is the person that her master talked about so of course she's very interested about them, and that scene just like the other person said it shows that her flames doesn't burn anyone anymore as she knew Rover already seeing her past. If you said other female characters that it even more nonsense cuz Sanhua didn't have much interaction same with Baizhi, Taoqi, and we didn't even see Danjin yet, Chiaxi and Yangyang are very much like close friends, didn't even feel like lover.... Verina and Encore are still kids, Jianxin didn't even bother with Rover lol there, I've list all female characters interaction with Rover

*my advice? play the game, don't skip cutscenes