How you feel may just be how you want to feel. Whenever I have broken up with someone, it has usually been that we have both realised it wasn't going to work. So we have parted on reasonably good terms, and remained friends, and more than once when it has all gone wrong again, I've gone back to one in the past (mainly as someone to talk to) and sometimes the flame was rekindled.
However, it was only after this has happened that we realised we DID break up for a reason, so although good mates, lot of love between us etc, we knew there was no point to trying again. By all means, check things out but don't hold out for too much and be prepared to move on.