I agree on her not leaving school voluntarily. I remember someone saying she had a scholarship, so I am not sure she was dependent on J and W for her tuition, but you are
considered a dependent until 24 when applying for aid. Unless her card was on a joint account with JH, cutting it up or attempting to control her finances, even on a financial aid account, is abusive IMO. That doesn't mean it didn't happen, just something to consider.
I do think you're on to something with the AJ has a fight with her mom scenario...she may have taken her mom's side normally, but
if they fought about something and it was bad enough for her to leave in the middle of the night, she doesn't have the truck yet, where else could she go but walk down the street to stay with WH at his hotel? For this scenario to hold up, she either has to be dropped off by WH with the truck before 7am for the sighting to be valid, or the sisters are lying and AJ was already MIA by then.
That leaves us with:
A. Why would sis lie?
B.
Did WH drop off the truck before or after 7am? (he never actually tells us!)