
I think that this uke is irritating. He is always and always so quick tô get angry. Come on not too long ago They were runing in circles because he can't be honest ir speak his mind. He is always only thinking about himself. Of courage two years is too much of a time for him tô just waste it but there is always a better ways tô comunicate. Come on he is your Lover. Sit down and have a Nice talk for gods sake

I can see where you're coming from. This story is interesting through its ability to portray different perspectives. :)
Although it was irritating initially when Junyoung did not straightforwardly tell Sihoon, "You are a married father who is also dating my best friend, Mari," we also know that Junyoung saw no reason to say so because he believed the misunderstanding was true. I think if we were in Junyoung's shoes (an inexperienced person who fell in love for the first time and felt guilty for betraying his best friend and contributing to destroying a family), our first instinct isn't to say what we think is obvious. If Sihoon was a cheating married father, it's wrong to deliberately contribute to separating a family and hurt your best friend. If Sihoon was a cheater and a married father, Junyoung would have felt guilty if Sihoon broke up with Mari and his wife. So, the story shows us why Junyoung chose to break up.
Junyoung is thinking of both parties, just like Sihoon. Junyoung did consider postponing his military enlistment for their relationship. If Junyoung doesn't go to the military now and Sihoon goes to the States alone, then the couple would spend a total of four years apart, instead of two. :/ In South Korea, it is mandatory for every able-bodied man to enlist in the army, and he cannot postpone his enlistment past the age of 30 (Korean age). So, Junyoung can't avoid his military enlistment forever.
Maybe Junyoung didn't have the best wording when he said he didn't want to "waste two years" of his life in the U.S. However, Sihoon asking Junyoung to come along and then being more assertive about them planning their future together... I love both characters, but Sihoon wasn't thinking of Junyoung's position, and Junyoung accepted Sihoon going to the States without seeing that he himself must follow his older lover.
They're in different stages of their lives. Sihoon has no plans on meeting anyone else after Junyoung, and at the age of 39, it makes sense to settle down. Junyoung, on the other hand, is 20 years old, so he has a future he could plan: establish his career, finish his military enlistment before it may interfere with other plans, and learning how to manage his relationship. Sihoon doesn't need to worry about his career because he could work as a doctor, but now he's just advancing it. Junyoung is serious about Sihoon, but not at the expense of abandoning his ambitions or himself.
It's not fair to ask your lover to give up their life for you. Yet, it's important to be on the same page in a relationship. I think bad timing just stepped into their relationship.
Little Joel was so cute (≧∀≦)