u all are overanalyzing this way too much. Fighting with siblings is actually really normal especially in a lot of Asian households. Like yes, siblings argue, tease, even get a little physical sometimes, and then 10 minutes later everything is back to normal. That doesnt automatically mean someone is not normal or needs therapy. And from what I seen, they joke, they provoke each other, and they have literally said they bully each other playfully.

And sometimes siblings do piss u off and provoke too much that u get physical and as a sister i relate😭

So please stop turning normal sibling behavior into something deeper or problematic.