GF and chess tournament

i have a tournament tomorrow that will decide the national team..... i am one of the top players entering, i think i am at least.......... my girlfriend says she will be entering....... what should i do if we play against each other?

Just beat the pants off her; oh wait, maybe not the best metaphor...But seriously, she'll know if you're not playing up to your usual skill level and probably resent it so just play your normal game.  Of course I haven't had a girlfriend for awhile so my advice is automatically suspect... 

Just play the pieces the person moving them is sort of irrelevant. Plus it would be your chance to show some dominance...you think your GF wants to date a loser she thinks shes better than? No way bro lay the smack down, she'll dig it even if she doesnt know it.