Bit of a strange experience...

Hello! I hope you are having a great day :)

So something really strange happened to me earlier. On my way back from the post office (exciting life I lead), I was stopped by a guy.

'Hey, I just saw you walking down the street. I am looking for a wife and you have potential. What's your name?'

I was so shocked and immediately embarrassed that I didn't say anything and desperately tried to find a way to escape without being too rude. 

'Oh okay. Erm I'm sorry but I have a boyfriend.' (I really hoped he would leave me alone if I said that, and I mean - you would think that he would?!)

'That's okay! I can pretend to be your gay best friend.'

It was at this point that I started to feel very uncomfortable. 'No.'

'How old are you? And how old do you think I am?'
'Ehh I don't know. Sorry I have to go now.'

And then I left. He started yelling 'Stop! Wait!' but I didn't turn around and just continued walking. 

Thing is that I have absolutely no idea how to react in these kind of situations. If a guy came up to me and said 'hello' and wanted to start a conversation in a friendly, non-intense kind of way, I really wouldn't mind. I would feel very flattered. But this was just a bit too intense from the start - Why would you approach a girl saying that you are looking for a wife? Isn't that a step too far? 

Also, how strange for anyone to just assume that a girl would like being told that she has 'potential' to become his wife??
I honestly felt like I had entered some kind of casting. No thanks.

Is there a 'right' way to react instead of being all confused and embarrassed like me? It was such an awkward and surreal experience and I still don't know how I should feel about it. 

Let me know what you think. xx