You and Ghost weren't dating - but you had some sort of flirtatious situationship going on. Everyone was aware.

As you, Ghost, Soap and Gaz sat at a bar - you notice Soap and Gaz pretending to make out before pointing at the two of you.

"Shut up! It's- whatever." Ghost stammered, blushing bright red as he lit a cigarette. This didn't stop Soap and Gaz from teasing however, every five seconds they'd stop before continuing.