I've got an affection, this affliction
It's bringing me down, 
But all the while I am bouyed by such an emotion.
It invades my mind, muddles my devotion-
Nearly makes all function impossible

This diseased mind has only one mission: to be with it's affliction- this affection, you see. 
The only cure is in vaccination, filled exactly with what infection you bring
As it courses through my system, I can feel the sorrow soothe; 
The panging in my heart stops...
Did my heart stop?

Yes,
This condition, no longer contagion 
It makes me happy to say,
Is with sensation, fighting cessation...

Still my only ambition is for you, my love, to stay.