"Everyone, huh? Should I ask if someone had to learn that lesson the hard way to drive it home, or wait to see how the regulars react when you show up to answer that question." Because he knows better than most people just how well the Black Widow can take care of herself.

No many people can face the Winter Soldier as often as she has and live, let alone be up for getting drinks and dinner with him.

On the sidewalk, he puts himself between her and the street out of habit, not because he thinks she needs protection.