Situational irony!
Because, she initially thought she was free from her husbands wrath. She celebrated and her heart was happy, this only to end with such a heartbreak that it kills her.
Ok ok thanks for the ecall bye love wyeiwtw weee
Miller used the play as a criticism of McCarthyism. The Crucible is about the witch-hunt, plus trials that took place in Salem in 1692. In this play people cared about other people's business and being accused of witchcraft was the most dangerous sin. To avoid being hanged people accused others... so yeah
Cause or become is what the suffix -fy means.