I think this has got to be the series with the most hype around it that I've ever seen. I don't know if it is because of its country of origin or that it shows things that country normally censors, but I saw stuff from this one all over the place. I'm sure this will not be a popular opinion, but I honestly do not think it deserved all of the hype that it got. Was it bad? No; was it great? Also, no. I won't give away the ending, but you have the one 'straight' guy try to get back at his ex-girlfriend by seducing her current boyfriend and the entire series is all about farce and manipulating people and honestly the premises is not really believable to begin with and it never really goes beyond that as it covers a two year period in their lives. On top of that all of the plots (main and sub) all kind of end, there's no big resolution to any storyline, they all kind of fizzle out. It's like the writer said 'here's a cool idea, let's include it', but had no way how to write it. Yes, there were some cute moments and some funny ones too, but this wasn't really a memorable series and the main characters spent their time having deep conversations with their friends and not each other. I did mostly enjoy it and I don't regret watching it, but it's not one that I will probably ever watch again.

Source on TMDB