What does it mean when older men keep saying this to me?

Question

Way more than once an older man has made a reference to my "boyfriend". I don't get it? Just random guys like a helper at a carnival, my dentist, the guy behind the counter at the mall ect... it goes like this:

(in candy store at mall)

me: and can i get this? *picks up piece of candy*

guy: sure thing. (guy is maybe 55, Indian, happy looking.) Getting it for your boyfriend? *smiles*

me: uh, *haha* *smile* I don't...

my friend: *confused look* she doesn't have one *smile, raised eyebrows*

guy: *grin* here you go. *hands change*

me: thanks... *smile*

Is it a joke 'cause I don't get it, and they do this all the time! They seem just like nice old guys and i know my dentist is really cool but can someone please explain why they say this?

Answer 1

They think they are being funny.  But they are wrong.  

Answer 2

That's dirty old man talk, they mean nothing by it.  I'm sure it's like small talk, how's the weather, having a nice day, is this for your boyfriend? It's ingrained in their psyche!  Next time say "No, it's for my son!"  

Answer 3

The older guy is probably trying to see if you've got a boyfriend.  You must be attractive.

Answer 4

your in heat,

are you wearing any perfume or deoderant hairspray?

Answer 5

Oh P-a-leeeease! Get over yourself.

Answer 6

it does not mean anything.... just being nice

Answer 7

They are trying to see if you are single.  You should answer back "No, for my lover Julia"

Answer 8

You're probably pretty enough to attract older men.