Thanks for offering your insights, nordicguy.
You might be interested to know that I've resumed chatting with him a bit on Facebook, thanks in part to your input.
More on his 'enigma', as you put it.
He's always liked to tell me how tough his circumstances are. And I believe him! I know he works from 6am to about 5pm, while paying off loans. I've seen his family, from a distance, and they indeed look very poor, living on the edge, just as he constantly reminds me.
He goes on about this regularly, and has done as long as I've known him. And every time he does, I say something like:
"So do you want some money?"
And his response is always: "NO!" And then things like "I pay myself!"
This routine gets me every time, because it always feels exactly like he's trying hit me up for some động. Or maybe he just wants some sympathy? Or maybe he does want money, but needs me to offer it to him in a different way? Or maybe he thinks I'm going to marry him and bring him back to Australia? Who knows.