It's hurtful to express disapproval of someone's hairdo.
Jessie had just gotten her hair done and was meeting May at her house.
May wants to tell Jessie what she thinks about her hair.
May tells Jessie that she loves her hair and asks where she had it done.
May tells Jessie that her hair is awful and starts to laugh at her.
Jessie tells May thank you and gives her the name and number of the salon she went to.
Jessie gets mad at May and leaves her house without saying another word.