I wasn't going to comment but I love, love this show. It's a shame I couldn't find any recap for it.
The great friendships of Jung Joo, Ui Hyu and Han Joon endure tragic events from the past and present. I love that they instinctively know what the other person need the most and would ensure that support or advice is given. A great example is the video clip above, the dialogue between UI Hyu and Jung Joon that moved me greatly.
In all my life, apart from my own family whom I am very close to, I know of only one friendship like that and it is one I treasure very much. The quiet, understated but always there friendship is undoubtedly one of the key pillars of my life that make life meaningful in this crazy world of ours.

Funnily, I started watching this show as I am a great fan of these 3 actors (and the rest of the cast), and I was eagerly waiting for romanace between Ui Hyu and Jung Joon to bloom. But what I leant instead from this is that painful truth is way better than the uneasy and temporary "comfort" from continuing the lies, and how important real friends, what I call life partners, are to our very existence!

Two words.. Eui Swoon!