Octavia guided Esteban away from the Enchanted forest and towards the cursed desert. She had convinced him that by going to the origin of black bloods they might be able to find a way to stop the curse of the sands from spreading. Their destination was the old ruins which are the only remains of the black blood temple.
Esteban agreed to her suggestion and followed her, he was concern about the innocent lives that might be lost because of the curse and gave it priority. He was beginning to think more about his kingdom and responsibilities and without realising it he was thinking less and less about Elena.
The pain in his heart and the love that he had for her was slowly disappearing without his knowledge. He missed her less and less with every passing moment. He found himself listening to everything Octavia said without an objection. To him her words were starting to become more important than all else and he was unaware of it.