Yes, what George said, "I've read that a break-up is a little like the death of a loved one," is actually true.

I have actually been thru this myself. It takes tremendous effort to recover...like baby steps...one day forward, then two steps back. It also can take what seems to be a long time. It is important, during the grief stages, not to do anything rash...like meeting other potential romantic partners. (I know from experience, sadly.) It is also very important to be patient and kind to yourself. Even if you feel like a zombie, try to do nice things for yourself. You may not feel like socializing, but that would be good, even if you have to force yourself. I went back to college and got my M.A. in Art, which took 4 years since I was doing it part-time, mostly during the summers. For the first two summers, I walked around numbly on campus, thinking I was seeing him at a distance. Eventually, this did pass, and I began to feel proud that I had stuck with it.

None of this may help you, but taking classes is a great way to focus on something positive. I often wished there was a "magic pill" to make it all go away, and I'd be immediately better. Of course, there is no such thing. And, in truth, TIME will be your healer. Be patient, and be kind to yourself, and I do promise, it will get better.
Patty