The level of reciprocation in communication is so unbalanced with me and my W it's not even funny. I have no idea why she can't even send an acknowledgment for a message that I have sent - esp when it's regards to the kids. I sense your W is also at the same level. Maybe it's indifference, anger, meh etc. I have given up any expectations from her and you should too. Yes, it's kinda bizarre and for them to want to have a civil relationships, their actions are not aligned with that sentiment.
At this point, you did your part. Now let it go and live your life.
