You're so right. I understand that he is disoriented by the situation and all the information dumped onto him at once, but goodness, this guy has never taken a moment to reflect. He just gets swept up constantly, making a fool out of himself. He's barely got any choices, considering doyoon's influence but he's got so many people now to reach out to and drive him into a corner, squeeze some answers out.
It's valid to be cautious about gramps' words, since he can't be sure whether doyoon is the same type of twisted as him after so much manhandling as a child. But damn can he spend some time understanding and piecing everything together based on what everyone's told him? How tf did he ever feel so strongly for someone he knew nothing about anyway, even in the past.
This is my issue with mpreg too. It's degrading to have men bear children, even though they were raised in a society with similar stereotypes as the real world, and pretend they know about parenthood and connection with their own children. God, this mf is a failure to siyeon. He isn't concerned nearly enough to secure and maintain a healthy life for him and doesn't take nearly enough risks to protect him. In the end, he only priorities himself, lusting over sex, like any other living male would.
I love how he just believes everything these fucks tell him. Like I understand the connections but maybe investigate more.... Anyways there's def something going on...