I feel so frustrated

I'm sorry but I'm so hung up on original siwon. Adults around them kept comparing the twins and it's normal for kids to feel jealous of their siblings but it wasn't kid siwons responsibility and neither was it within his capability to reassure his twin since it never showed in the manhwa that looked down or felt superior to jiwook. His twin hating him was not his fault and he tried his best to mend their relationship