T, I see your H has actually been gone long than mine, although I would still say that mine headed into the tunnel around the same time.
Just find a way to do it super casually--like "We're going to be in your neck of the woods eating out, if you want to join us it might be easier than driving over," or something like that.
Did things get worse for you around the D filing?
M: 16 years Bomb 4/07 OW 20s long gone Divorced 11/09 I remarried New Guy Cooperative r w/X regarding D