Even after having ample time to tell him he's acting that way because he loves you, you STILL decided to beat around the bush and not tell him why....even after he straight up called you out on not getting to the point.
"I won't let you be with him! I'll help you raise the baby. All you have to do is sign on to our company's charity case foundation and wait a few months after I'm done stringing you along. You're going to be SO happy!"
Seoul just needs to get right to the point instead of beating around the bush. All he needs to say is that his behavior contradicts what he says about Love and that whenever he says it's stupid it makes him (Seoul) feel betrayed and want to leave a loveless relationship.
Pop idol daddy, Gallahan, is always a welcomed sight to see!