Some progress today. For a while now, when I would FaceTime with eldest kids to youngest kids, W would not even acknowledge eldest (her step kids) on the call and instead just hold the phone to youngest. I asked that W at least greet and converse with the eldest because they asked me why W did not say hello to them and for the kids sake. Immediately today when FaceTimed today, W was friendly and chatted with the eldest. Glad she is putting the kids first in this.