You know the situation. The project is completed and there is nothing left to do. You did a good job and the client is more than satisfied, but it's over and time to move on to other projects and clients.
However, though you are moving on, must you really get "divorced" from your previous, and now, dormant account?
The answer is a resounding no. Separation perhaps, but not divorce, because there is always the potential of a renewed relationship on yet another project further down the line.
But just how can you renew the relationship? Might it be by "keeping the faith"? Definitely not!