I do that.... but then again I love shopping! However, I think the best way to get over someone is to do things that make you feel good about yourself.
Even though I run and work out on a regular basis, I tend to work out more after a breakup. I also find myself dressing up more and taking more time on my hair and makeup. I think it's about feeling like you're still desireable to the opposite sex.
My ex and I broke up at the end of March and at first, I was like guy crazy. I went out with several different guys and then after a month or so, I got it out of my system and calmed down a bit. I think it's just kind of assuring yourself that you've still got it.
Or maybe that's just me? haha