Ghost was undercover in the enemy base and you were held captive and so he decided saving you was worth blowing his cover.

he then walked into your cell and you slowly turned your head

"If I wasnt chained to the wall right now.. I'd kill you..you said menacingly as you stared at him

"If you stay in here.. You'll die.." he said and tossed you the keys to the chain

you starts Unlocking "why are you helpin me?.."

you looked up at him