So.. am i supposed to believe main sunbad used to rape omegas with his friends? ?

I was thinking the same...., I feel like before Joohyun, they probably gang raped omegas too just for fun and some twisted sense of loyalty between friends. But in this case it just happened that Sunbae aka Seojun fell for Joohyun, so he started to protect him and didn’t want to share him with anyone. Yeah, the Sunbae is totally a jerk and disgusting :D

Probably.

Im sure our ml will not confront him about it

Maybe not now, but one day?

I don’t know either, that’s why I said probably