What are the lines that express "even if we can't be together in the end, we don't regret knowing each other at the beginning"?

1, fallen flower

Song: Zhu

The bright flowers wrapped around the trunk are in full bloom, but the wind and rain are jealous of the beauty of the flowers and always want to urge them to wither.

I really want the God of Guan Chun to live longer, instead of letting those delicate and lovely flowers fall on the green moss.

2. Potential separation

Tang Dynasty: Bai Juyi

Don't cry, dive.

Nothing to say, dark acacia.

No one knows outside the heart.

A solitary bird locks a deep cage at night, and a sword breaks branches in spring.

Although the river is cloudy and sunny, aconite is black and white.

There is only seclusion and dark separation, and there is no end to each other.

3. Old parting

Tang Dynasty: Guan Xiu

If you hate wine, you will get drunk.

I'm afraid that the Yangtze River water is full of tears for my children.

I'm not from this generation. Give someone an empty arm.

Meet again another day, and the breeze will move the world.

4. A lifetime of mistakes

Qing Dynasty: Cao Xueqin

All roads are good marriages. I have only seen the alliance before Mushi.

Facing the sky, the nobles in the mountains are crystal clear with snow; I will never forget the lonely forest in the world.

Alas, the only fly in the ointment is today's letter: even Qi Mei's case is hard to settle.

5. Give it to a maid

Tang Dynasty: Cui Jiao

The prince's children rushed back, and the beautiful woman was wet with tears.

Once in the depths of Hou's ocean, he became a stranger from then on.