Like playing with a woman's children to win the mother's heart.
To someone else, if he could not win her heart.
He is trying to win her heart, but has had trouble doing so.
There are many, but only one will win her heart.
Am I the happy man who has won your heart?
"The man who had won from him the heart of the woman he loved!"
I thought that any man would be proud to win her heart.
None of them however being able to yet "win" her heart.
The king won the hearts of the people, as children do.
Idiome