Unfortunately, he forgot to bring his phone with him. The device remained on a table at McDonald's. The Palimpsest app was still open on its screen when a text message from "Dad" appeared. Until now, Jon and his siblings had been raised by single mothers. Jon's original father was still alive but pretty much out of his life now.
Athena was sitting in McDonalds, having bought a a pile of burgers off the dollar menu. Athena had not become the best version of herself....she'd become the worst. When she spotted the kid leaving behind his phone, and not coming back, she headed over to it, grabbing it. The phone hadn't locked yet, and she was smart enough to know that she had to keep using it or it would lock. It was much fancier than her phone.
She did so, hurrying out, still occasionally swiping. Once outside of easy sight, she looked through the phone...hoping for maybe a mobile pay account hooked in, or something else.
There was someone two doors down from her who knew all that tech stuff. He could probably unlock it for her, maybe even tell her how much she could get for it.
Jon didn't know what was on his phone, but soon either Athena, or whoever she went to with the phone would very soon. It wasn't just the app, which he believed no one but him could see...Tiffany had been sending him pictures, and even though they were supposed to have been automatically deleted, they were still in the phone's memory.