TO BE JILTED AT THE ALTAR
To not get married because the other person decided not to on the wedding day
TO BE SMITTEN WITH SOMEONE
If you are smitten, you find someone so attractive that you are or seem to be in love with them.
TO POP THE QUESTION
To ask someone to marry you
TO GET HITCHED
To get married, to wed.
TO BE THE APPLE OF ONE'S EYE
A person or thing that is very precious or much loved.
TO FALL HEAD OVER HEELS FOR SOMEONE
to fall suddenly and deeply in love with someone
TO BE ON THE ROCKS
if something such as a marriage is on the rocks, it is experiencing very severe difficulties and looks likely to end very soon
TO BE AN ITEM
If two people are an item, they are having a romantic relationship
TO TIE THE KNOT
To get married
TO BE SINGLE AND READY TO MINGLE
Single and keen on dating.
PUPPY LOVE
Romantic love that a young person feels for someone else
TO DUMP SOMEONE
TO BREAK UP WITH SOMEONE
A MATCH MADE IN HEAVEN
It is said of a couple who is perfect for each other