Is this an indication that this man knows me in real life?

A guy on Facebook that looks vaguely familiar, but whom I didn’t recognise, just sent me a message, saying; ‘Good morning to the person who never fails to make me smile.’ Does this indicate that this is a man who knows me quite well, without me knowing it? Earlier, he said he wants me to feel comfortable being his friend. That he wants a woman to love him for who he is and he said that I’m really beautiful. I’m quite naive about such things, though. I’m autistic. It just sounds a bit to me like it’s someone known to me.

Is this an indication that this man knows me in real life?
Post Opinion