How does Higgins change from the beginning to the end of the story?

I really don't see Higgins change that much, he's pretty static. Higgins is a really intelligent but pretentious man with unresolved mother issues. He uses Eliza not only to win a bit but to experiment with the opposite sex which he views with impunity. Higgins is a bit of a paradox because despite his conceit, he's a likable guy,

"His manner varies from genial bullying when he is in good humor to stormy petulance when anything goes wrong; but he is so entirely frank and void of malice that he remains likeable even in his least reasonable moments."

Higgins doesn't do any about faces in the play but really there would not be much of a story without him.

I am not sure.

I really don't see Higgins change that much, he's pretty static. Higgins is a really intelligent but pretentious man with unresolved mother issues. He uses Eliza not only to win a bit but to experiment with the opposite sex which he views with impunity. Higgins is a bit of a paradox because despite his conceit, he's a likable guy,

"His manner varies from genial bullying when he is in good humor to stormy petulance when anything goes wrong; but he is so entirely frank and void of malice that he remains likeable even in his least reasonable moments."

Higgins doesn't do any about faces in the play but really there would not be much of a story without him.