Need advice for a WW who left Part 4

[dwh15]

So my WW sends a TM this morning asking if I am avoiding talking to her. She sent several TMs yesterday, and I only replied to the critical ones dealing with kids. One of them mentioned she wanted to discuss Christmas ideas for the kids, which I chose to ignore. I figured we were both buying our own presents for kids this year. But she brings it up again today and insists that we need to talk.

I finally agree and mention after work tonight, to which she's kind enough to inform me that she can't tonight because her and OM are meeting her sister for dinner. Oh joy - thanks for that news. She wants to talk tomorrow night instead. Now I'm just aggravated at the thought her family, in spite of all the early reassurances to me, seem to be accepting OM and legitimizing the relationship. The last 3 or 4 TMs I've sent to her sisters have gone unanswered, so no idea what has changed, but feels like a new level of betrayal and I'm ready to give up on maintaining those relationships. I suppose it was inevitable that her family would eventually back her up, but it still hurts. Seems like there's always a new layer of pain just waiting around the corner.