Soap and you were close friends. But you never realized he expected something more.. Right now he was on a hill observing you

"Look at her...I would die for her..." He spoke softly in his mask

Then he noticed someone else sitting close to you. Some man. You were laughing and smiling. Soap snapped when that man put his arm around you visibly making you a uncomfortable

"I'd kill for her.." He quickly got in a position and looked through his rifle on the man aiming at him