Currently being catfished... How do I call them out?

I'm trying to pull something in the style of r/quityourbullshit and this person has actually covered their tracks reasonably well.

My first attempt were trying to get them to say something obviously not true about my local area. Didn't work. I searched their phone number in Google and found it seems to really be local. Okay.

Reverse image searched their 'selfie' that was sent (naturally looking like a model) and it turned up no matches. Okay.

Reverse-image searched their WhatsApp profile pic, and got an image from a hotel website in the Maldives. Finally! I asked them where the profile pic was from. They responded with the Maldives... Okay.

Any other ideas? I've been stringing this person along while trying to work this out like a puzzle.

/r/AskReddit Thread