I'm sorry to tell you this, but you are likely going to be on the receiving end of surprise sex some day.

Obky date men who can beat him up. Not because you need to feel safe, but because they need to survive a surprise encounter.

Wish you the best 👍

He sounds creepy to me. You'll have to tell him straight that you are not interested and to leave you alone, then stay out of his way, walk past him, don't even acknowledge him. Last resort, get a restraining order otherwise he won't leave you alone. Ever.

Could be that you are the only one around for him to flirt All others being married.
So just enjoy the services.

Maybe maintain a notebook to record things related to him.
Pay for the groceries after he delivers .. say your bf overseas does not like to accept things for free especially from old men.

And he knowing where to find you, say you never get lost and shall call him if at all you do sometime.

Ask him to buy you beer etc. until he opens up someday and then you can throw him out.

Tell him point blank that he makes you uncomfortable, that he is acting in a way that creeps you out, and that you do not want to talk to him anymore.

And document everything he is doing, especially if he persists after you tell him this.

That document can be evidence in court if you need to get a restraining order against him.

If it's possible move. Try to get voice recordings of some of your encounters and you can get a restraining order. Also let other people know you're having a problem with this guy so if something happens the cops will know where to start looking.

Sorry you're having to deal with this.

He is obviously obsessed with you and the alarm bells are ringing as he will start tracking your every move soon .He is definitely a psychopath

Does matter what he is his behavior is unacceptable to you.
You need to keep yourself safe.

He is 53 and you are 33 so he is taking your kindness to his advantage. I would mind my way, be distant and actually tell him off firmly. There is no absolutely no need to entertain and feed his ego any longer.

I once read some good advice from a guy called Chopper in a gentleman's magazine. His advice was if somebody tries to intimidate or frighten you, you need to take it to the next level. Maybe talk about the pepper spray you accidentally brought back from The States with you, Oh well now it's here you might as well keep it in your handbag (not sure where you live didn't look), maybe talk about the ex whose balls you stood on for a laugh and he just went crazy, you get the idea.
Anyway original idea came from Chopper and a guy with a name like that you have to take seriously.

Sounds like a weirdo.

Nothing there to suggest he is a psychopath but I do see some stalking related behavior. I would tell him one time how you feel about it and that while he might be a countryman and all we are never going to be a thing.

Is he actually from your hometown? A psychopath will do this thing called “mirroring” to make you feel closer to them…

I would say he is a sociopath