They give their own number because then if you ring them straight they do not have to give a cut to the agency . It is the best way to do it for the girls they keep all the money. She thought you a clean good punter who not degrade her. Don't read to much into it I go to them because I been caught every normal affair I had this way I not get caught. I have been with a lot of working girls. I think like someone else pointed out here you looking for more than just sex. For her, you are a punter nice and clean enough to give her own number and she gets every penny she make . You are money to her nothing more if you looking for love this wont be the place you will get it . The nearest you will get is a girlfriend experience if you pay extra