how did mc's older brother fall in love with that rapist manchild? wtf

THATS EXACTLY WHAT I THOUGHT LIKE I CRIED FOR HIS BLIND AHH AND HE STILL WANTS TO MARRY HIM???I just finished chapter 81 and i hope that rapist dies also im gonna drop this i dealt with enough from the main couple and the side couple is somehow even worse????Like wow never even knew it was possible to get worse from that.

Wait sorry it was chapter 82 that i just finished