the bar might be low , but i was so relieved when he didn’t rape him

I was soooo relieved too... But That's kidnapping, after all; our standards are so low, it's terrifying.

He already has. He had already raped him before, in chapters 23–24, after Yeomin had gone through a severe low point. He had been crying and got drunk to the point of passing out. Tae seo shows up, sees him like this, and just immediately begins assaulting him. Mind you, he was being quite rough, and Yeomin kept voicing his discomfort the entire time.