Here's a simple answer to your question, JD: you don't.
Technology has made it so many fucked up scenarios are now way more possible. Thank you tech for fucking up our lives and at the same time making it oh so much more pleasurable.
On a serious note, the only thing you learn here is that your Sophie can't be trusted and therefore you can never know if she ever is going to really see you when she supposed makes a date. And if ever this ugly ho is the one you see answering the door, run away as fast as you can and never ever call the fucked up whore who would associate with such a beast.
So then you'll have a better chance of actually talking to the person you wish to be. Anyhow, who is to say you haven't been truly talking to the person you meant to and rather than see you she'd finds it a much better proposition to unleash the beastlie onto you when you show.
What I'm trying to get it is that it doesn't make much of a difference. When someone is fucking with you, you'll get fucked if you keep playing the games with these shits. But hey may be you can play the game better or you like being played. Do as you please. Don't think anybody here cares anymore than keeping their asses clean.