It is right and a sad fact that you cannot trust many people on the internet
Rule no.1 with people you now know are scammers is to ignore it.
If anything like flowers is sent to you, don´t acceoppt it and don´t talk to the scammer or "friends" who claim they know him. They didn´t want your address, they wanted it to see how willing you are with sharing personal details. A "good" (believing) victim that does not argue is a promising target.
It may be a matter of weeks and even months but ultimately they will go away.
Since these kind of scammers are NOT local people, they aren´t going to "look out for you". A victim that doesn´t respond is a waste of time for them, from their persepctive. Try to understand this