I don't think he is doing that kind of thing that you thought! Because it was too cheap ah! If he calls a girl to go out, is not that price la! I own a company, some client from oversea will call a girl to hotel, even the girl from main land china will not cost that cheap ah! And if he really does not want you to know, he will take care his credit card receipt very carefull la! Don't think too much la! I am sure you know your husband very very well, you must know what kind of person he is! Just ask him as normal tone, and said you are very curious law! Don't worry! It will be fine!