痴心难渡情河
[chī xīn nán dù qíng hé]
Expressing the hardship of a deeply devoted person ('痴心' meaning 'ardent or infatuated') in getting over a love ('渡' meaning to get across/over and '情河' means river of love). It can be roughly translated as, 'Ardently In Love and Hard to Move On From This Relationship'.