PC soldier name different than xbox

So I'm kind of confused on this one, on the xbox 360 my gamertag/soldier name is lonestar136. I bought BF4 for PC yesterday and the soldier name is lonestar1367, and i can't change the Origin ID to match my xbox 360  because it is already taken. Im just wondering is it taken by ME? Because under the list of my soldiers I have the Xbox 360 - Lonestar136, and then a separate soldier PC- Lonestar1367.

Its not really that big of a deal, its just annoying me is all, I want the names to match for my own sanity. Any help or clarification would be much appreciated!