Everyone gets a freedom of speech, so it is no need for you to describe ironically!
The main topic is a girl who was flirtted by a soldier, there is no association with exchanging name cards on business occasion! Further more, it is good manner giving a mobilephone No. to a customers for easy communication. We do not care whether the number is private or not!
Well, too many mind in your descrition on reply, maybe it is wise for you not thinking too much!