this all depends on how long and how much you used.
the low dopamine levels can really do a number on someone when they quit.
if you used not too long I would say your going to crave it and then feel depressed and have no energy.
this with the right nutrients and exercise can be fixed.
if you have been a fiend all your life well it could take years to get the dopamine levels back.
add to that everyone is different and well that's about it.
massive cravings serious depression and no energy.
how long just depends on how much damage you have done to the dopamine system.
as you are both quitting be careful not to make it worse for each other.
its way to easy when your upset to take it out on your partner.
you may need to do this alone if you find you are getting to each other.
don't make any relasionship judgements until this is all over.