My parents split up about a month ago.
If your parents don't live far from eachother, or won't live far, why not hold off deciding? stay where you are now, and visit the other parent often too. You're still getting used to your parents not being together anymore you can't be expected to make such a decision so soon. When you feel ready, make a decision.
As for getting over it... to be honest, I think you'll just get used to it. I did pretty quickly. It's still weird, but it's not awful and depressing. Just new.