Kural - 1307

A lovers' quarrel brings its pain, when mind afraid
Asks doubtful, 'Will reunion sweet be long delayed?'

Explanation
The doubt as to whether intercourse would take place soon or not, creates a sorrow (even) in feigned dislike.

Tamil Transliteration
Ootalin Untaangor Thunpam Punarvadhu
Neetuva Thandru Kol Endru.