Nicknames already?

Oh, and another thing, half way through our date Brad starts calling me by my last name.  I was a little confused by this at first. Then I thought it was cute. This feeling only lasted for awhile. After calling me Tandy all night it started to get very annoying.

I thought maybe this was just a one time thing, but I was wrong. He continues to refer to me as Tandy all the time. I tried to explain to my friends why this frustrates me, they just thought it was funny. So, now not only does Brad refer to me as Tandy but, all of my friends do as well.

What has this guy started??!!