Midnight's feed

Hey, so I haven't read this for a few weeks since it came back with new chapters. In ch 70, Woowen went after his father after being rarely choked to death. Did Woowen almost grab his father who was about to be hit by a car but at the right moment he remembers the mean words his father said and then decides to not save him?

In ch 72, what does it mean “Let’s not meet forever?” when Woowen’s mother says that?