Loki and Diaval leave their hiding place and the sorcerer walks over to Silena's bedside. He was guilty. She was gone and he could do nothing to help her. All because of him. HIM. Thor was the cause of all of this. Loki did this to his own god-daughter without thinking. He stood by her as she laid in silence in her sleep. 

"I will not ask your forgiveness because what I have done to you is unforgivable", he began talking to her in his soft voice. "I was so lost in hatred and revenge. Sweet Silena, you stole what was left of my heart", his voice began to tremble and his eyes began to water. "And now I have lost you forever", his voice cracked as some tears fell from his eyes. "I swear that no harm would come to you as long as I live. And not a day shall pass that I don't miss your smile", he finished his confession before he leaned down and kissed his god-daughter's forehead and he turns to leave.