Hey, OP here. Update...

So far nothing happened over the past 2 weeks. However there's a very good chance she's coming here for Christmas. It's customary for our families to dine out together when they visit(She's never told her family that we were together officially).... It's still 6 months away, but I'd like to get a head start to prepare for her arrival. My sister says just be civil and polite, but not friendly. My friend said to just ignore her during the future dinner( Thank god for Monster hunter freedom 2). My other friend said that since she's a Sasuke fan girl, be an asshole,in a sense be indifferent and cold to give her a taste of real bitterness.(why do girls like Sasuke?). Since I collect weapons I'm slightly tempted to whip out my katanas... Im 95% over her, and Im not looking for a gf right now. Still working out regularly. Anyways I need opinions and Ideas on how to confront her. Any suggestions???