Sometimes these things are done as a force of habit...maybe you are bored....don't know what to do with yourself.And again please don't do things on the rebound.Take some time to chill. enjoy your breathing space,do new stuff....time will help you know what's best or whose best.Also don't run the risk of breaking her heart again...a little time and patience could work wonders .Good luck.Enjoy your time and allow her to spread her wings too.
Kobuslisbon_ntle