After hearing her story, he had a change of heart and made up his mind to help her.
She had a change of heart and decided to adopt a more positive attitude towards her work.
He used to dislike spicy food, but after traveling to India, he had a change of heart and now loves it.
She used to be against the idea of online dating, but a successful match made her have a change of heart about her beliefs.
The documentary changed his perspective on climate change, leading to a change of heart about his carbon footprint.