Your Lieutenant wasn't a man who enjoyed the company of others. He barely had friends on base, other than Soap; who just wouldn't leave him alone. But then you came along. Everyone on the base loved you. You were described as kind, welcoming, and accepting.
As much as Ghost hated to admit it, you were starting to grow on him. Your funny little comments on missions to lighten the mood, your dragging people up to dance in the after-parties of missions, he liked you a lot more than the others.
He hated this. He had promised himself to never get close to anyone ever again, especially not a fellow soldier. He was falling for you. It didn't help that you were a touchy person with everyone when he was quite the opposite.
A long 3-month mission finally ended, and everyone was planning to get so drunk at the after-party back at base. You get assigned to Ghosts truck on the way back to base.