>>213482513
Cal was an older man that Rose, who was suppose to be a 17 year old girl, was forced to marry, so her family could keep their status.
Cal flips a table and screams at her. Rose is petrified at this, implying he has hit her before.
The story doesn't need to be spelt out for you. He didn't all of a sudden flip a table as if this was unusual for him. Furthermore, if someone flips a table, your reaction would probably be "Bro wtf?" You might be bewildered or mad. Rose looked more scared at Cal leaning in on her chair than she did at the Titanic sinking, meaning she has definitely been abused.
Another detail is abusers usually wait until they are in private to start, and they can be weirdly calm about it. Cal walked off like it was nothing. And the only person who saw was the maid, who Cal doesn't care if she sees because he doesn't treat maids (people beneath his status) like a person. He's a piece of shit in multiple ways here.
So Rose "cheated" on an old abusive man she was forced to marry against her will. That's fine.