Aria really felt bad for Rose who was abandoned by her parents just because she chose to walk away from her first relationship after knowing her boyfriend was cheating on her when she was a freshman in college
Her boyfriend wasn't particularly rich, his family had a small business and they were Rose's family friend. When she broke up with him, he had lied to both families as Rose likes somebody else and broke up with him so that his parents don't blame him. His parents believed him and what worse was that her parents believed him too just by seeing his fake sorrowful face.
They forced her to apologize to him but she turned down trying to make them understand he was the one who cheated but the argument rose and they threw her out of the house.