Because all I'm seeing is Ronia getting trashed on the recent... But I think her reaction and actions were valid.
First and foremost, she knew her brother might find her, yes-- but it isn't easy just leaving her cafe. It became her solace and she had already come to love the people in the town. It is her HEALING place, so it's only logical she would stay as long as she is able to.
Now, we all know she's all strong and "badass", but there's this thing called TRAUMA RESPONSE. All her life, her whole family DEGRADES her (except for MVP Grandpa). Her fiance, who was her strength and drive abandoned her, heck she still even cries in her sleep remembering the fucktard Prince. She isn't fully healed, she's IN THE PROCESS OF HEALING. People can't just poof forget the YEARS of abuse (emotional) just because she is profecient in all kinds of things. It's just so sad that people just want her to be a mary sue or saying she's a damsel when she's been trying so hard to heal and be strong for the people she cares about.
Lastly, Shize, my guy, yeah it was kinda off putting seeing him just watch and do nothing. But what can he do? Fucktard brother just barges in unprompted and goes on a rampage rant. As a "friend", and with the interactions, he isn't even a close confidant yet-- it wasn't his place to interrupt on what it may seem like a "family matter". I for one wouldn't know what to do in that situation-- because anything I might do might make the situation worse or even hurt Ronia further. But yeah, man's could have at least pried him off of her like bruh, use your brawns at least.