Basically it tries to explain that this piece of shit gyaru-oh got his mom stolen from him by the kid he bullied himself before so he went and bullied and stole someone else's mother so he's no chad but a salty manchild who still thinks of his mom.
Also the the MCs here dated a girl for 3 months who understands his circumstances however he's broken so he is into cuckoldry. At least it's protected sex and he seems to be happy.
@Wilfriback also I think another post from the text version mention how the mom realize she just a replacement. If that correct, than it could explain how she started to cry at the end of part 3. Realizing she gave up someone who truly loved her for someone who just views her a replacement at best.
Base +6, likeyouknowwhatever +5, 58569 +6, TheBrojangles +6
maybe laliberte's story is inspired by the law of the jungle like a lion fighting to take dominion the defeated lion has to look elsewhere to find dominion. even though there is a sad ending that makes me dislike it but there are other ways to make the MC happy again without caring about bitch mother.