Good luck with the counselor!!! I really am pulling for you. If just one relationship can be saved then great.
Anothetr thought here is that arguments can't be avoided. They will eventually happen adn if they don't then noone is being honest. But, the key is how the argument gets dealt with and how you come out on the othere side. Ithink that probably one of the hardest things to do after being apart is to get through an argument. For people like us in these sitch's, I think and argument just protracts things. Everyone remembers the problems and assumes that this is the start of the same old, same old. But, what both need to realize is that this time, remember to listen and work together. You may both be pleasantly surprised by the results and how different the result may be.