Haha. The first time I went out to Ohio I didn't tell me family and most of my friends. Hell, the then gf only knew because we were "entangled" when my friends came to pick me up at 4am. I don't know if that means I have more balls then Injen.
Maybe it just means I'm an inconsiderate asshole. I'd tell her I'm not going, then go. When she calls you just yell a code word so everybody shuts up. My friends and I use to do that when we went out drinking when one or more of our gfs didn't know about it.