"She's" likely an e-whore and they play the numbers game. You can, if you were so inclined, buy a dump of videos, images, etc of unnamed girls with no reverse image search results. The large ones are like ~10k and 100s of videos and contain all the standard checks (shoe on head, etc), various formats like IG stories / snaps, etc.

They then use a TON of websites, all of which have been modeled so they know the best approach and they just sent out 1000s of these messages a day.

It's always possible this is a real person, but even then they're playing the numbers game and will be rejected 99/100 times so unless this is their first day they don't give a fuck what you say if it's not a "sure, how much?".