All love shifts and changes. I don't know if you can be wholeheartedly in love all the time.
Sonnet 27: My own Beloved, who hast lifted me
by Elizabeth Barrett Browning
My own Beloved, who hast lifted me
From this drear flat of earth where I was thrown,
And, in betwixt the languid ringlets, blown
A life-breath, till the forehead hopefully
Shines out again, as all the angels see,
Before thy saving kiss! My own, my own,
Who camest to me when the world was gone,
And I who looked for only God, found thee!
I find thee; I am safe, and strong, and glad.
As one who stands in dewless asphodel
Looks backward on the tedious time he had
In the upper life,—so I, with bosom-swell,
Make witness, here, between the good and bad,
That Love, as strong as Death, retrieves as well.