Despite Freya being in a relatively good mood so far, she wouldn't be Freya if she would let those remarks slide. Standing up from her seat she walks over to Lizzie and grabs her collar pulling it upwards a bit forcing Lizzie to throw her head backwards, face towards the ceiling.
Freya smirks. "A first lesson for you: You address me with Vorsitzende Eistochter. If your feeling informal Vorsitzende, Kommandant or Eistochter may suffice. You don't call me anything else unless you have sufficient reason to believe I allow you to do so and you especially do not address me with some offensive and childish nickname." She let go of Lizzie's collar and took a small step back.
She raises her already fairly loud voice: "And a second lesson: There are some pretty good reasons to get stressed here. This isn't some lovely Bretonian aristocratic high-tea. The reason for this bar's existence is because my brave men and women are fighting every day. They come here to find get some relaxation in their hectic lives and some here are drinking simply to forget. The pilot you treated like a waiter was risking his life out there before he came here."
Freya was getting really worked up, but then pauses and seems to calm down again. With a much softer voice she continues: "The reason there is a vacant room next to mine is not because someone moved to another station you know? And it'll be my responsibility as the woman in charge if one day the room becomes vacant again. You can go and drink and laugh and do whatever you want. But this is not a part-time job. It's your life."