There is an urgent need for 35 idioms or words about love sweetness. Please help!

Love is one, and death will not change.

Never die.

Forever and ever-forever and ever

Emotional harmony between husband and wife

Two of the same kind

Solemn vows of love

Sing a duet with sb.

Heart to heart; Love each other; The two have the same idea.

Mix like water and milk-in perfect harmony

Stick together like glue or paint-fall in love

Love is firm

pair off wing to wing

The seas run dry and the rocks crumble, and they grow old forever.

Flowers bloom before the moon ―― An ideal scene for a lovestruck couple

A happy marriage/a hundred years of summer

When both sides are in a humble situation, help each other

(of husband and wife) grow old together

I want to be a lovebird in heaven and grow together on earth, two branches of a tree. ..

Take Qi Mei as an example and respect each other.

Love at first sight,

Be faithful, spend a good month, and the husband sings with the woman.

cross a river in the same boat

(of husband and wife) grow old together

Forever and ever-forever and ever