And you have me and I have you,
When there are roses all the way,
And April days and nights of May,
And life is joy the whole day long--
Not now can passion flower in song.


But in the dark days by-and-by,
When, deep divided, you and I,
Shivering among the rose-thorns bare,
At last confess what fools we were;
Then, neatly wired, a nosegay fine
Shall deck your heart--O heart of mine!

Edith Nesbit

http://www.poemhunter.com/poem/not-now-when-skies-are-gold-and-blue/