If you have a Thai Facebook account, sooner or later, you will be targeted by a Thai lady. Often, these will be ladies stuck in Isaan trolling for cash. They will quickly hit you up for money, under various pretexts.
Other ladies may be in Pattaya, simply looking for customers. You should first ask yourself why they don't have customers, with the most plausible explanation being they don't have good work ethic.
Often, these are friends of current Facebook friends. In that case, I give them a chance. Sometimes they work out spectacularly well.
Then, once you know a lady, she may start "working" you, either angling for more business, or an exclusive arrangement. This can be deadly for newbies. They will engage in long social media chats, lots of self promotion, and flattery. I have one lady who I can't get to stop chatting, she is trying for an exclusive relationship. No idea how her Thai husband thinks about it.
Another lady just wants me as a frequent customer. She can't ask for more, since I know she has a 19 year old Thai boyfriend.