Zhao Youyue's roommates did not notice Xing Na's special treatment towards her. They were too naive to figure out the truth behind their relationship and simply thought that it was Zhao Youyue's charm and looks that earned Xing Na's favor at that moment.
If Zhao Youyue was to activate her Goddess Aura when in the dorm, she would never receive such favorable impressions from her roommates.
It would not be illogical - as goddesses were simply beyond approach. You could only envy them from afar, or spite them. Keeping a low profile and maintaining a positive, straightforward attitude made her far more approachable.
After all, you would never have to worry about being a side character when friends with such a simple woman.
He Weiwei was the complete opposite of Zhao Youyue. She had gone out of her way to apply exquisite makeup, don expensive clothes that she seldom wore, and got her hair done up just for this day.