Here is something else, rH created this Quick Reference Card, I have found it very helpful. Maybe print this up and keep it in your wallet for quick review often?

WHAT I NEED TO DO:
Back off
Give tons of space
Art of silence
Engaged listening
Stop trying to control the outcome
Don't react poorly
Don't try to fix him
Validate him
Let him find his own solutions
Give him time
Give him consistency
Let go of needing to know why

WHAT I MAY GET:
Him come to me on his own
Him trust me

ALSO:
Don't lose hope
Don't think it will be a quick fix
Have no expectations
Act as if my life is great
Act as if he is not coming back
Constantly fine tune based on current realities

REMEMBER:
NO pressure about OP
Maintain emotional control

In the depths of winter, I finally learned that within me there lay an invincible summer. - Albert Camus

Uncertainty is the very condition which impels people to unfold their powers.-Eric Fromm