What chapter in the novel did Season 2 (Webtoon Chapter 52) stop at?
Korean manhwa raws (not that much further ahead 1-3 chapters): newtoki319 dot com, search ”해후“
Korean original novel: booktoki319 dot com, search “해후“
English translation of original novel (not perfect + machine translation, but definitely best we’ve got!!): readhive dot org, search “Reunion”
Hope that all helps!!!!
Based on the final chapter of this spinoff, I think the mother subtly knows about their relationship and wishes both of them well.