Analysis of To Constantia

I.
The rose that drinks the fountain dew
In the pleasant air of noon,
Grows pale and blue with altered hue—
In the gaze of the nightly moon;
For the planet of frost, so cold and bright
Makes it wan with her borrowed light.

II.
Such is my heart—roses are fair,
And that at best a withered blossom;
But thy false care did idly wear
Its withered leaves in a faithless bosom;
And fed with love, like air and dew,
Its growth----