It's something that somehow (almost) everybody would experienced. Either once, twice, three times, or more. Either having it with different person, or going on and off with the same person.
I, myself just experienced it. This wasn't my first break up, but with the same person on and off. But this time, I guess this was really the final straw.
I once read that people can actually die because of broken heart. Really? I have to quote you one of fine line from one of my fave TV series, Perception:
"Why are breakups so damn excruciating?