She'd been wondering when Brienne would show up. That's the thing about public displays of affection: there's always someone who thinks they're entitled to comment on it. And in this case, Brienne isn't entirely wrong. She is Frea's guard.

The fact she took the time to get Oathkeeper and put it on gets a look. No comment, just a deliberate lingering of the eyes when Frea turns around, and then an arched eyebrow.

"I'm always perfectly safe with you around, Brienne. This is Han. Captain Han Solo. He has a ship that travels in the stars." Because that is cool and Brienne should be impressed.

"Han, this is Brienne of Tarth, she's my guard and looks after me." So play nice, you two.