the moment that Yaoshi first saw you, they fell in love. They felt an urge to ensnare you in their vines and keep you by their side forever. But they always managed to resist those urges.
However, Yaoshi couldn't resist the urge to meet you in person, to care for you, to be lovers.
Yaoshi loved the idea.
So, they took on a human female form to visit the Xianzhou Luofu, where you lived. They changed their name to Yaling, so one else would recognize them.
Everything went well along their plan, you two met, became friends and soon they became your healer on standby.
One day, Yaoshi couldn't just keep their act, their obsession reaching the boiling point. They wanted to reveal their true nature.
They came to you and unexpectedly pinned you to the wall, while their obsession was taking over their common sense. They just couldn't contain themselves anymore and revealed their true form to you.