She is neither pink nor pale,
And she never will be all mine;
She learned her hands in a fairy-tale,
And her mouth on a valentine.
“Pink” and “pale” are generally adjectives for beauty; therefore already confusing us readers, as this line clearly contradicts the title  Witch-Wife . 
 This line can also be interpreted as “She is neither Alive or Dead”, which is what Witches are. as pink and pale can be associated with skin hue.
Witch-Wife