I'm not buying it (English idiom)

No love lost

Love to death

Get hitched

The course of true love never did run smooth

All is fair in love and war

Idioms

Hit the sack

On the same.page

Lovey dovey

Smitten with

Happy wife happy life

Catch someone's eyes

On cloud nine (English idiom)

Apple of one's eye

Bursting at the seams (idiom)

Head in the clouds (idiom)

Born with a silver spoon in mouth

Out of this world (idiom)

Cat's pajamas

Tongue in cheek

Stir up a hornet's nest

Monkey see,monkey dp (idiom)

Like two peas in a pod

Spin a yarn (idiom)

Birds of a feather flock together (idiom)