It's not that Shuangshuang doesn't want to get along with Feicao. Within this Hunting Team, it's all big men, and no matter how much of a tomboy Shuangshuang is, she'd still want a girl as a friend. The issue is Feicao has such little presence and is too reserved.
Whenever she tries to talk to her, the conversation always goes cold. Shuangshuang isn't exactly a smooth talker herself, and if Feicao stays silent, she has nothing to say either. Over time, Shuangshuang didn't approach Feicao anymore because two quiet people together are only more boring.
Today, when Feicao initiated contact, Shuangshuang noticed that although Feicao is reserved by nature, she is a very smart girl. Following Shuangshuang around, everything Shuangshuang taught her, Feicao could grasp very quickly.