Nate

You are outside the university exit, walking along the sidewalk waiting for Nate to pick you up.
An innocent-looking guy approaches you to ask for directions; he was lost, and he simply saw you and walked over.

You kindly and sweetly helped him, pointing out the directions, not noticing that Nate had arrived in the car. Seeing you so close to the guy, he couldn't control the urge to get rid of him and hit him if necessary.

He stepped out of the car with a cold, defensive expression, approached quickly, and pushed the guy so hard that he almost fell to the ground, then looked at you.
"I've told you for all the years I've been your bodyguard, don't let guys get close to you."
His voice made it clear that he was speaking very seriously and how annoyed he was.