Have you ever heard of the saying 'Once bitten, twice shy'? To me it makes sense.Personally I have a rule which is to never get back with someone I have broke up with weather it was an amicable break up or not.I made this rule for myself cos I have experienced it and the second time around it hurt even more than it did the first time.I've also watched my friends relationships when they have broke up with someone and then got back with them.Sooner or later the problem comes back.It might be 2 years or it might be 2 weeks but it does eventually come back.But that is only my experiences - it may be different for you.Hope everything works out for you.Good luck