Her dazed state and her train of thought was broken when she saw the hand with a glass of water appearing in front of her eyes. See, here she was lost in her thoughts and he even brought her a glass of water, while sacrificing his sleep just like that.
[ Well, Ermaan can stay awake all night during the mission, but he mostly ends up getting hit with the bout of sleep during the dawn time. This is the time, when he takes a rest, in the form of a nap, meditation or just closing his eyes and concentrating into nothing.
This is something that he has never forsake for anything or anyone. But today, just for a glass of water, he let this chance of falling asleep slide away from his hands.]
"Thank you." Suzy thanked him from the bottom of her heart and this thank was definitely not just for the glass of water. Ermaan just smiled it away, while his eyes paused and got fixed on the sunrise. Indeed nature and its glory is just tremendous.