Facebook Issues……………..?

Okay so I have tried to research this question but am not having any luck. I was recently updating my security and privacy features on facebook and noticed that whenever I log in and out of facebook its recording my location where I have logged in at or at least the approximate location. The problem is that it is saying I am logging in, in a different state. I read somewhere that when logging in with the mobile facebook through ones phone it will use a random IP address. That’s fine and all but I’m confused because whenever my fiance logs in to facebook with his cell its recording our local location but not for me. I have already changed all passwords etc. Nobody knows my information nor do I know anyone in this unknown location. I have even tried to temporarily deactivate my account but still no luck. I really don’t know what to do other than deleting it for good. I called my wireless provider and they were not any help either. Has anyone had this similar problem?