To say Daniel was miserably unhappy would be an extreme understatement. He had just lost everything.
Earth (and its inhabitants): Attacked and destroyed by the Ori.
Teal'c: Died trying to buy Jack, Sam and himself enough time to get to safety.
His human existence: Terminated when he was just seconds too slow.
Jack's sanity: lost after the Ori tortured him more brutally than even Jack could bear.
Sam was the only one who escaped relatively unscathed, visibly at least. Daniel knew his fate, Teal'c's fate, and the condition Jack was in weighed heavily on her mind.
