I just had an epiphany. I've finally figured out why OM (who is still clearly obsessed with W) is willing to leave to join the army. I'll bet anything that he enlisted with the 2-years of active duty option. I now feel sure that he and W have an understanding that she will wait the remaining 18 months to get her divorce, and he will be out of the active duty army with good job prospects a few months later, and then they can get married.
That explains a number of things. It explains why OM is willing to leave. It explains why W has introduced D4 to OM (they have now met several times) in spite of the fact that OM is about to leave for two years. It explains why W hasn't talked to me about our sitch, because she "knows" the ridicule that I (or her parents for that matter) would heap on such an idea. She probably doesn't truly believe that she and OM would make it that long, but she probably feels that she "owes" him the chance.
Ironically, my sitch may benefit from the big fight that I had with W a month ago when I told her that I might file for D, that I didn't think she was a Christian, and that I didn't want to have more children with her because she wasn't a good mother. W was very hurt by that conversation, and it may have given OM the confidence to enlist, thinking that there is no way that W and I would ever reconcile.
This is all speculation, of course, but it aligns with previous statements of W's and it makes sense. It's somewhat disappointing, because I had been hoping that W planned to reconcile when OM is gone, but it's also good to have a grasp of what's going on so that I know how to act.
The LORD is near to all who call on him, to all who call on him in truth." (Psalm 145:18)