Obviously they didn't last. Both leads weren't ready for a relationship in the first place. They were just two people lacking intimacy and connection. Both were lacking maturity, it was probably their first relationship for each other. I see a lot of comments saying that they tried their hardest but they didn't. They absolutely gave up and didn't even try, what they said at their friend's wedding, they were waiting for it to end but either couldn't make the first step.
It felt one sided from beginning to end.
Pathetic husband and despicable selfish wife.
On the bright side, I've seen worse.
As someone who had seen over 300 dramas, THIS DRAMA IS FUCKING TRASH!