[@KatherinWinter] I don't think I've actually given a lot of my character's backstory thus far. (Maybe I'm going brain dead tonight.) How experienced really is he? And in what? I don't see highly intellectual and thoughtful commander on his CS. He's a guy who hunt and kills wild boars. Are you just kind of hoping he's experienced in children rescuing? Convenient as it would be, not on his lifetime experience resume. xP 

But the thing he's requesting makes perfect sense to him. And honestly, given his options, how many better ways does he have to do this? The point is that he doesn't know how it will work, he's a guy who doesn't have all the answers. He also clearly has made plenty of mistakes already. A warrior skilled in fighting, endurance, things needed to track down dangerous people. Yes. But, he isn't a tactician. He isn't a genius. I'd figure this had been pretty clear in how I've wrote him.

And in your own CS, your character is smart, she's hardworking. I don't see why she couldn't/wouldn't make best with the little she had and find a woman in a likely male dominated building. Through what amounts to using your time wisely and effectively...

Bastian isn't actually asking for something that unrealistic, he rationalized that the people in this building wouldn't be suspicious of you. Because its a place likely full of criminals and the beastkind revolution outside is clearly a bigger concern...He wants her somewhere he thinks will be safer for her. He's doing this out of affection. And the fact he has no other choice. He can't get to her there, without stirring up trouble. He wants to do this the legal way. (You saw how friendly he was with strangers.) Her leaving that building, outside anywhere near the beastkind crowd will get her face possibly stomped in. I really don't understand the problem with his character action, from either a practical standpoint or an emotional one.

Also, one thing on not being sure if Bastian can change for the better. Well I've already kind of hinted that he's been doubtful of himself when he thinks about not being able to protect her well. So she already is, whether knowingly or not. And people sometime change, by force after they hit rock bottom first to do it. Maybe if Elizabeth tries to understand Bastian, opens up to him. We'll get somewhere with that. But I don't think she's actually told him her name yet. But that again, shows how the characters are...

In real life would she not have told her owner her name since he directly asked? I dunno. Doesn't seem rational to me, especially if scared of him at the time. But I'm putting real life out of a roleplaying story and letting the narrative flow and go where it may.