I didn't see any tip-off about Sam's love life in that episode. Did i miss it or did they just not show it?"To all of you Sam fans dying for a hint of what's going on with Carter's love life, you'll have to wait until 'Trio' for a not-so-subtle tip-off."
"... We will not be dealing with Sam's love life on Atlantis. However, a passing mention of her personal life during a candid moment is another matter."
(Executive producer Joseph Mallozzi, in a post at his blog)