Until the MLC'er feels that the marriage is over they will not move forward.
What do you mean by forward
Well if you read the stages of a MLC you will see that they move through the tunnel of MLC.
So by forward I mean that they don't get stuck within the tunnel. So by not detaching from the MLC'er you may prolong the time that the crisis takes. You can do nothing to speed up the crisis but you can slow it down.
I am trying to tell you how important it is for you to LET GO!