<human>: So it's been exactly 1 year since she(20F) broke up with me(20M). It was  a rough period for both of us and we broke up on pretty bad terms. I've been single ever since.

I thought I was over her and the relationship, hell, it's so long since I last saw or spoke to her. /r/breakups told me to do the NC thing, and I guess it was effective.

But it's 2 oclock in the morning and I'm sitting in the corner of my dark room, listening to sad songs, crying... Why am I crying? I don't get it... 

What's wrong with me?

Can you condense the text into three sentences or less?
<bot>: It's been 1 year since she dumped me. I got over it. But I'm crying in the corner of my room at 2am. Confused...