This entire industry is built upon, and depends upon discretion, from both sides, provider & client.
Maybe this will help you understand the situation more easily:
hamiltondude and Mrshamiltondude are out shopping.
Would you like it if a provider came up and started talking to you in front of your wife (repeatedly, despite being told politely to get lost) ?
Not married ?
How about you're out with your mom or dad helping them pick up some stuff, and the same situation arises.
Mom & Dad are dead?
You're out with your boss grabbing some stuff for the office party, or you're out with a niece.
Do you really want to have to explain the circumstances as to how you know this woman that seems quite familiar with you ?
Interactions between provider and client are to take place within the hour (or appointment time), and through texts/emails/phone calls, whatever works to set up the rendevous. That's it, period, end of sentence. A thank you email or communication is okay, if warranted, but again, discretion is the key !!