Responses
nah that's just the author's bad writing. If this was in the real world, yeah you have a point. But the author clearly didn't mean for the rushed wedding to be the cause of their rocky relationship. Nowhere was the wedding implied to have any negative effect on the characters' psyche and relationship.

I think they got married too fast that they didn’t establish a respectful relationship they still had problems right before the marriage
And insecurities never really go away
But it’s true that dojin puts in a lot of work
And hye-sung can be very stubborn
Ahhhh they make me frustrated ヽ(`Д´)ノ