1、一往情深

be passionately devoted

2、花好月圆

booming flowers and a full moon

3、至死不逾

till death

4、地老天荒

the end of life

5、相亲相爱

be deeply attached to each other

6、执子之手

the hand of the master

7、情有独钟

show special preference to

8、相濡以沫

mutual help and relief in time of poverty

9、相敬如宾

respect

10、山盟海誓

a solemn pledge of love

11、白头到老

reach old age

12、琴瑟之好

the best of zither

13、琴瑟合鸣

the combination of zither and zither

14、至死不渝

will never change until death

15、如胶似漆

love each other dearly

16、天作之合

a heaven-made match

17、海誓山盟

exchange solemn vows and pledges

18、心有灵犀

minds think alike

19、永结连理

permanent knot connection

20、情比金坚

love is stronger than gold

21、矢志不渝

abide by one's faith

22、海枯石烂

till the seas dry up and the rocks decay

23、天长地久

enduring as the universe

24、长相思守

everlasting longing for each other

25、珠联璧合

each improves by association with the other

26、生死不渝

abiding

27、白头偕老

live to old age in conjugal bliss

28、两情相悦

deeply attracted and attached to each other

29、非你不娶

you don't marry

30、情投意合

agree in opinion

31、心心相印

have mutual affinity

32、永远爱你

love you forever

33、比翼双飞

happy couple