She recognized Ye Mo but she felt she didn't have the face to see him. Mu Xiaoyun who came to the Shen Qiong continent with her was extremely famous but she couldn't even join a sect. she didn't think about finding Xiaoyun as she didn't have the face.
Grandma Feng took Xiaoyun to the teleportation formation in that hole not because of good will. If Ye Mo didn't give Xiaoyun a protection measure, she would've been killed by elder Feng.
Grandma Feng was the backup of Ice Lake and her elder. As the sect leader of Ice Lake, she couldn't avoid things. Regardless she had great relations with grandma feng. Grandma Feng pretty much died to Ye Mo's hands. Regardless, she didn't want to see Ye Mo nor think of the past.
She was also sad thinking about the martial brothers and sisters that got lost coming to this world. She was pretty much alone in this world.