welcome to the omegaverse, most the stuff they do is out of their instinct ╮(￣▽￣)╭ Imagine being a dude (more like a kid since in south koread 20 is still underage) alone in this big world and from one day to another you get violated and pregnant for a total stranger, that manipulate and controls yourself to the point of everyone you meet would get investigated so you end isolated and ...pregnant
hmm investigated. apparently, hyesung is not aware of that fact, but if he is aware I think his decisions are tolerable. But yeah, doing that to an innocent child, he's still a dick (〜￣△￣)〜
No matter what he'd gone through there's no reason to put his son through that. Also why did he come back again? Because he's bonded with dojin and he'd die without him. What if they're not bonded? He might have never come back. Σ( ￣□￣||) I'd give him points for being realistic, but we all can't deny he's an ass