that explains it all. This should've been the chapter after the adultery part happened seriously!
This is why im glad that I didn't follow with the bandwagon of the people who just dropped this manga after seeing the adultery.
I guess my assumptions were right. They still remain that way because its all for the sake of her Son. As bad as adultery is, they all took the responsibility instead of running away from it. I actually think its better this way since having either Paul or Lilia separate from the household, it would not make the family the same ever again. The mother is very wise and kind of inspiring in a way how she handles such a scary problem as being a victim of adultery.
Still dislike Paul the most since he was the cause of it all (even though lilia seduced him, but he was the one that made her that way) at least he looks like he is willing to also take responsibility. Imagine if he was separated, he'd probably grow up to be some hateful person doing crime and would eventually go back and murder em. This decision by zenith to keep them both here is wise and I respect that. Plus, Paul is still the breadwinner so having him still there would keep the family income stable too. kind of a win win.