First question for you...why did you stop the goodnight call?. Surely your D3 is more important than your being upset that OM may be there. Can you get W to call you if he is there, then you can still say goodnight.
Generic discussion..if this follows on from a call regarding D3, then by all means carry it on. Just do NOT talk R or M at ALL.
If you just want a generic call to WAW, leave it to her to call you. Do NOT intiate ANY general chat calls or txts or emails. Otherwise you will not know if this method is working. See what I mean?
Stay strong, but involve your D3 more in your life, she deserves it.