This is a tricky one, I am not going to lie. I've been in this situation a couple of times. It can work out for the better and it can also go left. You will never know. Anybody can impersonate someone else and you would never know because you've never seen the person.
You have to think about this, how do you know that person says they are who they say they are?
That person could be a murderer or a stalker for all you know.
There are people who come up missing due to situations like this. I suggest that you proceed with caution if you one day decide to meet this person.