from the bottom of your heart
to have your heart set on something
To have a heart of gold
to be the apple of your eye
love is blind
puppy love
to cross your heart and hope to die
to have a big heart
To wear your heart of your sleeve
to cry your heart out
when young people like each other
you are my favorite person
to really want something
to cry a lot and feel very badly about something
to care about other people and do nice things.
to be very giving and caring
when you don't see a person's faults because you like them so much
to really mean something
to make a promise
to let everyone know how you feel about someone