Ok, I agree. Most likely the ex. But! I have a convoluted ”what if”
What if Hoodie Jack was with the girls from the bar to the food truck to ensure that they got home safely. And when they contacted an unknown person for a ride, he left to go back to his own residence quite nearby the girls. And what if the girls then had a problem with the driver (say maybe he would just not leave) or if he left, a prowler.. or something thPat spooked them. Would it not be possible that they could have tried to reach him since he was acting as their protector previously that night and lived close by?
it is full of many “assumptions” but if those happened to be true assumptions, I cannot rule this out.