As if I lost someone close

Sorry, if I am posting in the wrong place, but I didn't know which would be the appropriate one.
I hope someone can explain what is wrong with me.
This year in September I decided to study Korean language. I believe I chose Korean, because I like Korean pop, their lifestyle. Or, at least, that is what I thought. Although, it is weird that I one day just made that decision and went to Korean language course. Anyway, the problem is not that. As part of my studies, I've been watching Korean movies. I watched a lot of them so far. When watching emotional, tragical movies I am not the one who weeps. I may sometimes drop a tear or two, but I don't consider myself as a crybaby. However, after a few dozens of films, I came across this one film about Korean war "Brotherhood". It is about the war between South and North Korea, and how brothers try to save each other by risking their lives. I couldn't believe it, a few minutes haven't passed and I was already weeping. I couldn't understand why. And throughout the movie I wept like someone who lost his close relatives or someone. Luckly I live alone. I went to the bathroom and wept for very long. It was the kind of weeping that I had never experienced before, my whole body was in agony. I kept thinking to myself "why this fu#ing war, why so many people had to die" and at the same time another half of me was in a stupor "why the f@k am I crying, I've watched so many films about war and tragedy, but this has never happened to me before, I am not on drugs or anything like that" . I had to pause the movie many times to wipe my tears, to calm down. During the whole film, I wept tonns of tears, my whole body was weeping. I was feeling something realy strange, as if I was in that war and did lose someone very close to me, although I've never been to Korea, I am not Korean.
Now the question is, what is wrong with me?

There is nothing wrong with you. We all have our triggers which set us off. I don't cry at ANYTHING and yet I cried when I watched Titanic, for the woman who passed at the end.. Not the lives that drowned but the old woman at the end and to me it was because it made me think of people I've lost.

but there is nothing that can trigger this as far as I know. I have absolutely nothing that relates me to any war or loss of someone. That's what I don't understand.

some concepts will trigger a part of you that you may not realize was there. I too will cry for no reason because of a song but the death of someone close to me has long since been repressed. i cried alot when i lost my best friend at 19 but never since when i lost friends or relatives. we all wish we could have saved someone we lost in the past even if it means we ourselves would die instead. seeing that kind of sacrifice even in a movie or song lyrics can trigger those emotions in us and our minds react automatically. Its not uncommon or anything to really worry about. its just a sign that you don't deal with your emotions openly enough. maybe you bottle them up and choose to internalize your feelings too much. i know i have and have had a few random solitary crying events for no obvious to me reason.