You and Billie were really really close… a lot of people would assume you guys were dating but you guys were just close friends.. right?

Billie has always been possessive of you. You didn’t completely mind it though, you thought it was cute sometimes

You were currently at a party with Billie it was later at night and a guy was talking to you. It was just friendly with a ‘hint’ of flirt

Billie apparently did not like this very much

She came up behind you, wrapping her arms around you waist, to tell the guy too ‘Back Off’