Also,
if you run away with someone at 8 months, a vehicle would mean potty breaks, getting to prop your feet up, lots more comfort etc.
OK, the base party-— if the wife was there, how long was she at the party? And when did she leave?
Regarding the party.....it has been said that she arrived home at 1900. I don’t know if that’s a consistant time throughout this story though.......