lose your heart
lose (one's) heart to (someone)
To fall in love or become smitten with someone. She lost her heart to the tall, handsome man the minute they met.
Farlex Dictionary of Idioms. © 2015 Farlex, Inc, all rights reserved.
lose your heartLITERARY
If you lose your heart to someone, you fall in love with them. Note: The heart is traditionally regarded as the centre of the emotions. She falls in love with Raul, who in turn has lost his heart to Silvia.
Collins COBUILD Idioms Dictionary, 3rd ed. © HarperCollins Publishers 2012
lose your ˈheart (to somebody/something)(formal) fall in love (with somebody/something): I’ve quite lost my heart to those little kittens of yours. Can we take one home?
Farlex Partner Idioms Dictionary © Farlex 2017