But here is what i don't get.. if there is no mortal sin, ie, a sin that breaks your friendship with God then why do you confess? What is the purpose of the sacrament if it is not to reconcile you back to God when you choose to walk away from Him?
You seem to be saying sins that are harmful to the spiritual life need not only confession but time away from communion becuase we are assuming the person is still attached to the sin and here is where you are losing me, if you confess it, the sin (the actual act) is gone, remembered no more, right? and if we still have a inclination towards the sin, then yes we need to work on it but the sin itself is gone and yes we are to work on the attachment to it but we can't work on it with out Communion, we need Christ. Also penance is issued to atone for the effects, attachment to the sin.
So, I dunno... I honestly don't understand what is a person going to confession for? To be absolved for particular sins or to work on the sin nature? And if you are going to work on the sin nature then you need communion to do that.
Now I can see if a priest hears a person's confession and the person really isn't showing any repentance, then yeah, tell him he can not go to Communion. But that's what priest do too in the Latin rite but it's really if you really show that you aren't sorry.