When ever two people divorce, there is always the chance for a reconciliation. The duration of the divorce or the reason are not really a factor. What matters is their feelings for one another.
In short, if there is still a spark between your date and the Ex., then there is still a chance for them to reunite. This means that you are nothing more than someone to pass away the time until your date can reunite with the Ex.
So, beware of the Ex!!!