While my take on the sister diddler part is bad looking back, I disagree with why Reynold broke off easily. Its the fact that he does have good impression of Penelope and that he has a clearer understanding of who she actually is that's why he can think more rationally.
I don't yet of how long he had this feelings for so I can't rlly make the fairest of judgement, but so far if we have no knowledge of the sister diddler part his actions are fairly normal for someone who have mixed feelings for Penelope. Not yet love not yet hate.
My mind might be clouded by bad opinions tho since its been a long time since I've last read the earlier chapters. Sorry
TLDR: Yall overhate on Derrick. He didnt do anything that warrant this much hate.
Y'all overhating on Derrick ngl. Personally, I don't think he's done anything toward Penelope that's considered REALLY FUCKING BAD.
He doesn't acknowledge her in her childhood, he doesn't trust her in that trial attempted assasination trial, and he doesn't like having Eckles around.
(Please let me know if there are any other actions maybe you can even change my mind.)
I won't count this brainwashed incident because clearly he's a victim too.
Other than that that's really it. Some of y'all are too enthusaistic saying the man should kill him self when he barely did any shit he consented to ngl. If you wanna throw hands throw em at Yvvone