The last episode was completely nonsense. Why did she have to make everyone forget about her like that? She destroyed friendships and made people feel alone.
I just can't buy that excuse that it was her only and last option. For me, it was really awful. Just vanishing like that for years, like sea bubbles???
Ok, in the end she came back to him, married him and had child. But it was..so nonsense? A happy ending built over a nonsense disaster.
Aside from that, I really loved the plot and all the story about their past lives. I enjoyed so much the OST also. But some stuff REALLY ANNOYED ME, such as the lack of characther development around the "villains" , they were ridiculous. Ughhhhh I wish his father had not died...

Well, I liked it, recommended it to my friends and also will probably watch it again someday. Every k-drama has it's mistakes and flaws. This one has way less than others out there.