change of heart

absence makes the heart grow fonder

One feels more love or affection for those one loves when parted from them.

all heart

Motivated by positive emotions, especially as productive of exceptionally generous or kind behavior.

and change

And some quantity, but less than the increment to the next round number.

be still my heart

An admonition to oneself to calm down when overly excited, especially in terms of romantic attraction.

break someone's heart

To cause a person to feel grief, disappointment, or sadness.

broken heart

A feeling of grief or loss, especially after a failed romantic relationship.

change collars

To change or shift one's career path.

change hands

To become the property of someone else; to be bought or sold.