What does it mean when a man calls you by your first, middle, and last name?

[SJane]

I am interested in this guy who always seems hot and cold. Recently we've been spending more time together in a large group of friends and has been addressing me using my whole name, i.e.,"Hey, Jane Doe Smith!" I often go by my first and middle name with friends I'm really close to and my name on my Facebook page is my full name. He tends to be a sarcastic guy, so I'm not sure if he's poking fun at me or trying to flirt.

[blueyaa]

Very difficult to tell, when I say a full name to the girl I like it is purely in a heated dicussion about something that is bothering me. Just ask him, guys just do stuff sometimes and when it confuses a girl and they ask us about it, we don't think anything bad, we ask ourselves why we did that in the first place.

[OutOfMyElement43]

I have one ex that I'm still friends with. After we broke-up, I started calling her by her last name. I have no idea why? My fiance calls me by my first and last name when I tease her or do something stupid. I wouldn't read that much into him calling you "Jane Doe Smith."