I think no contact would help if you feel its what you need right now. If your life continues to be unmanageable with him in it - even at a distance - than go no contact. If you think you can detach but still communicate, then keep that line of communication open.
My experience so far has been that it tends to be very hard to maintain constant contact because I get my hopes up and then something happens that shows me there is still very little change and I go back to the dark place in my head and its hard for ME to yank myself out of it. I hate that I still let him ruin my days sometimes.
And I have to throw my hat in for Suki's post. She really is spot on about the difference between rules and boundaries. Boundaries are what we set for ourselves, the kind of behaviors and situations we will and will not accept from others.