I personally think it was a mixture of everything; grief, the lack of knowledge of what will happen next, their love for each other, etc.
I need to vent my happiness right now so bare with me.....
OH MY GOD! I CAN'T BREATHE! THIS EPISODE WAS AMAZING! IT IS A GREAT TIME TO BE A HAYLIJAH SHIPPER RIGHT NOW!
Sorry about my all caps above but I needed to let some of my excitement out!