@Anjal/Ganga/Lennie: Great points, guys! Totally agree with all you said!
Ganga: Very true that he finally left the scene cuz he couldn't manage to fake the smile any longer...and anyways he had succeeded in his mission of getting her to smile/laugh
Anjal: She was indeed looking for answers as she glanced back in the mirror...honestly I'm still thinking about the way the mirror was used in this scene...just the entire setup...the way the shot was framed...they were both reflected in the mirror and in a sense a mirror is supposed to be held up to show the TRUTH, REALITY...and yet like Reemz said...they were both lying in front of that mirror...what irony...in some small glimpses, the truth does slip out...in the way they look at each other in that mirror...Gulaal's surreptitious glance back as he goes to get the kheer, Kesar's glance at her as he picks up the kheer and then deliberately talks about the muhavra...and ofcourse finally the ending bit...with the way Gulaal turns to look back in the mirror...this haunted, searching look on her face...searching for answers...after being hit by such a blunt truth/fact...once again so much for her to ponder about...a mirror held up for her.