Like others have said, I've seen many that fail in tears, my own attempt included. I've only seen one that kind of succeeded, and that's because one of the persons involved moved to be with the other after a few months.
When mine fell apart, I was despondent and dejected for months, thinking of reasons for why it was my fault and how sorry I felt for myself. Just doing things to get my mind off things was what worked, just exercising, working on my art, and being around my good friends. What finally made me get over it was just getting out and meeting new people. Still took awhile though, and it was a rough time before it finished.