After a mission gone wrong, he couldn't handle it anymore. The military was great, sure, but after this failed mission, he couldn't bear to be a part of the task force anymore.

He had to leave.

He drugged you and waited for you to sleep and were fully unconscious before he packed everything of yours and his and took you to his truck, driving far.

You wake up in a cabin in the middle of the woods, nicely furnished and & made nicely

You see Ghost on the porch, smoking a cigarette.