When they finally broke apart, Ygritte was flushed. “You’re mine,” she whispered. “Mine, as I’m yours. And if we die, we die. All men must die, Jon Snow. But first we’ll live.”
It wasn´t her choice to marry him but at the end they fall in love and even death can´t break their bond.
I think Drogo never leaves Danys side wherever he is, he will protect her
cant get enough of them two :D
Daenerys & Khal Drogo