idk man, for some reason, I don't like these two getting together. I can't explain why though. Maybe it's because the only reason he loves her is "She doesn't discriminate against my Onii-chan."
@Kutabarie I was re-reading and while I get what you're saying, I think it's more like he fell for her because she was the first person he met that understood him and his feelings towards his brother. like he expected to be judged for being a brocon but she was just like "why does that matter? is there anything wrong with being close with siblings". So I think it's mostly just her being an open-minded and the younger brother finally finding someone that he could relate to. maybe I'm drawing too many conclusions but this is just how I feel about this