act three: how has proctor changed from the beginning of the play? what do his actions in this act reveal about his character?

Proctor certainly matures. He laments his behavior with Abigail, Instead of blaming his wife Elizabeth, for his affair, he places guilt squarely on his own shoulders. By the end of the play John has gone from self-righteous philandering to trying to keep any good that is left in his name.