Don't Go to Bed on an __ (advice to Couples)
This page is the CodyCross answer for the clue below from TV Station, Group 610, Puzzle 2 (Game of Thrones).
Question is: Don't Go to Bed on an __ (advice to Couples)
and the answer is: ARGUMENT
Word Meaning:
ARGUMENT — (countable, also figuratively) A fact or statement used to support a proposition; a reason.
Definitions from Wiktionary.