Bluetooth Hacked?

I was on a site and i had a bluetooth window pop up saying that "aimen or amien" (can't remember which one) wanted to pair and asked me to put in the number. i just pressed cancel not thinking anything of it, then i quickly checked my bluetooth pref bar and it was under my list with my connected keyboard and trackpad so i disconnected it.

I have no idea how it could come up there when i did not pair with them or even try to type in a number.

Should i be worried? I have nothing turned on, on my sharing preferences.

No. Very likely it was just a random nearby Bluetooth item trying to pair. You cancelled it, that's the end of it.