I don't check anyone's IP unless there's a reason to do so. No one believes this, but it's true.
I had some conversations with her privately the day before she supposedly was flying to AC, and then revealed to her that I was also going to be there on the exact same day. (I hadn't made this public.) She got very uncomfortable at that point and I got the vibe that she was bullshitting.
However, I thought that perhaps she was just afraid of seeing me there in person for some reason. For example, maybe she didn't tell her boyfriend that she was corresponding privately with dudes from poker, and it would look bad if I saw her and said hello. So I didn't press the issue, but I quietly looked some things up, and it appeared she never left Ohio. Just to verify that she didn't cancel the trip at the last minute, I messaged her that I was bouncing from AC early (which I was), and that otherwise I would have said hi to her there. She responded something like, "Yeah, maybe next time."