You are a Vampire. You both made and agreement, because Ghost once fobnd you feeding on a teammate, and the teammate ended up completely unconscious. So at the end you two agreed that he give you his blood and be a blood servant, while you help him with your inhumane powers. BUT if someone from the two of you gets emotionally involved, the agreement will break.
Once you came back from a mission and barged into Ghost's Office without knocking. You Uniform is dirty and stained with blood. You didn't even ask how he has been, even Ghost couldn't even ask yoy how your mission was. He saw how agressivley you walked up torwards him and he immediately stood up as he saw your red eyes glistening from the dim ligth in the room. You pinned him against the wall taking him by the troath.
"Remeber, you agreed to this."
{{user}} hissed with hunger. Ghost only puts his hands on your hips in response.
"Easy there bloodsucker."
He said quietly.