My one question is what is Sousuke’s end goal with Rika? His wife is a bonifide human trafficker scum above all scum, but he doesn’t want to break up his family. I have read one other manga from MITA before that being Dokuzakura, the genre and writing style is completely different and I think Aisai is much better but I think the manga will end with a very dark bittersweet ending given his track record. I think Sousuke will get the happy family he wants but he’ll willingly chain himself to a complete monster just for his daughter’s sake. Glad I just got into this manga now as it seems the ending is in near sight, maybe it’ll be over by December? All in all it’s been very enjoyable
As for Soske's goal, it's to talk to Rika, after which he will make a decision. Now his main desire is to know why Rika does this. As for whether Rika will stay with Soska, it's hard to predict. After all, we still don't know the true goals, motives and reason for Rika's behaviour.
From the previous chapters (travelling in a car with Iwabuchi), we can say that Rika wants Soske to do something for her. Iwabuchi thinks that Rika wants Soske to have sex with someone, thereby making him a toy by blackmail. But in the last 91 chapter, Rika said that Soska would not let anyone near him, that is, he would not be able to have sex with anyone. That's why I think Rika has a completely different goal. I even have a guess that Rika's goal may be to kill Iwabuchi with Sosuke's hands. But it may also be that Rika wants Sosuke to fight Iwabuchi.
And the last chapter shows us that Rika is really afraid that Soska will divorce her. But Rika is also sure that it won't happen, because for some reason Soska won't be able to do it. And she even tells Akiba this reason, which shocks her. Rika also says that she ran away not because of the fear of divorce, but because she needs to prepare for something, but that's what she doesn't say. That's why I think the words that Rika said are true, that Soske is the father of an unborn child and that she is ready to do a DNA test. I also suspect that Momonga's channel was specially created for Sosuke, or rather to provoke him to something.
And finally, I think that Rika is not so stupid that she thinks that her husband will forgive her everything just because he loves her. Especially considering what she did.