Yeah, I got over it eventually, but things were never really the same. I still believe in love, but I'm much more practical about it.
As far as what they can do, there's not much, you'll have to get over it yourself. It just takes time. Al of my breakups have been nasty, so in the long run that actually helped me get over it.
I held on to the hope that I'd get back together with her for about about 6 months, but then I remembered all the messed up things she did that I had swept under the rug.
Time heals all wounds, you'll sometimes pick up some scars along the way, but life goes on.