Lets look at it from the point of being a buyer.
Sometimes shit happens, and that may be what has happened in this case. Perhaps her male friend knows more about cars and so is better qualified to come look at it. £1000 is a lot of money to some people, and perhaps after making a rash decision of ‘yes i will buy it’ her friend told her he will go look at it, as he may be more comfortable with saying no deal if he thinks its not worth it.
3 years ago, i needed a new car, and didnt have a lot of cash to play with. Cars up here in northern scotland are so iverpricced compared to England. So even after factoring in trainfare, i thought it might be cheaper or better value to buy in England. So saw a car on Pistonheads, in Bradford. Expressed an interest and asked for more photos, particularly of known problematic areas on the body etc. Said i was interested, but guy wanted £200 deposit to keep it for me, paid by bank transfer. Obviously alarm bells rang a bit, but he obviously had the car as he had been able to supply exact photos as requested.
I asked for his address as i said the bank needed it along with account number etc for the transfer.
Once i had it,aling with his name, i used the electoral role to check he lived there, then google streetview, and the street matched that of the one in the car photos.
This gave me a bit of assurance, but obviously still a bit cautious.
Anyway, bought the car, 3 easy mot passes later it is still going strong, and has never missed a beat. £1000.