Srimad Bhagavatam Canto 10, Chapter 60, Text 51

SB 10.60.51

upalabdham pati-prema
 pati-vratyam ca te ’naghe
yad vakyais calyamanaya
 na dhir mayy apakarsita
 
Translation: 
 
O sinless one, I have now seen firsthand the pure love and chaste attachment you have for your husband. Even though shaken by My words, your mind could not be pulled away from Me.
 
Purport: 
 
Srila Visvanatha Cakravarti quotes the following verse describing the pure love between Rukmini and Krsna:
 
sarvatha dhvamsa-rahitam
 saty api dhvamsa-karane
yad bhava-bandhanam yunoh
 sa prema parikirtitah
 
“When the affectionate bond between a young man and a young woman can never be destroyed, even when there is every cause for the destruction of that relationship, the attachment between them is said to be pure love.” This is the nature of the eternal loving affairs between Lord Krsna and His pure conjugal associates.
Srimad Bhagavatam Canto 10, Chapter 60, Text 50
Srimad Bhagavatam Canto 10, Chapter 60, Text 52