I'd just like to remind everyone that the bullying was between unsupervised children literal years in the past of the storyline. This is like demanding an apology from a high school freshman for something they did in kindergarten. Sure, you might get one... but acting like you're owed one says more about you than it does about unsupervised elementary school kids.
More importantly, however... it's been boring as fuck to read. Ren's been acting even more like an asshole for a while. At this point I don't care if the author outright kills off all the boys - I just want this asinine 'arc' to end. I might skip a few chapters.
Also, IIRC Markle got put through a boring, poorly justified guilt-trip arc earlier on as well before he became 'one of the good ones.' Ren still obviously dislikes him to some extent, in large part for 'not protecting her enough' as a little kid - as if a preschooler is obligated to do so. It's not about getting apologies or 'repentance' - it's just another episode of 'Ren finds an excuse to be an ass to people she isn't sexually attracted to.' I'm a little sick of that being the core plotline in this story.
Triela deserves better.