change of heart

US /tʃeɪndʒ əv hɑːrt/
UK /tʃeɪndʒ əv hɑːrt/
"change of heart" picture
1.

a change in one's attitude or opinion, especially a change from being negative to positive or from one decision to another

:
She was going to sell her car, but then she had a change of heart.
After hearing their plea, the judge had a change of heart and reduced the sentence.