想你想的无药可救爱你爱的无可救药
[xiăng nĭ xiăng de wú yào kĕ jiù ài nĭ ài de wú kĕ jiù yào]
Translated loosely as 'Missing You Uncontrollably, Incurably in Love With You,' it describes overwhelming longing and affection towards another individual, so strong it feels like an ailment with no cure except through resolution of those intense emotions toward that specific other person.