From my point of view it's testing you. Look at the reasons you broke up. Could you go back to the way things were? Would you want things the way they were? are you in love with the new man or just love him? What do they both give you? These are all the questions you need to be asking yourself. You have to know who and what you're not before you truly know who you are, and what you don't want before you know what you do. I find we're very often put into 'test' situations to see how far we've moved forward and if in fact we have.. Hope I've not confuzzled you too much, and it's helped a bit :)
Namaste
Jue xx