Yuuka's father is a real hypocrite. He really had the gall to say they came to visit because they were worried about her after saying something like "How dare you act this way." when she rejected their visit because she needed some time alone, even going as far as hitting her and lecturing her about having "selfishly" broken off her engagement, as well as her other life choices.
He makes for a terrible parent.
The one who should come to their senses is him, not her.