Dating non-greeks

[jimmycrackcorn]

I was just curious on everyone's take on fraternity guys that date girls that aren't in a sorority. It seems a lot of times that greeks naturally hook up, given their obvious similarities. However, there are some of us (men and women) who date outside of GLO's. My girlfriend isn't in a sorority (though I won't disclose her reasons why) and occasionally we'll get into a discussion about why she isn't in a greek org. and it seems she's a little insecure about being sort of an "outsider" whenever we have date parties, regular parties, etc. I assure her, after joking about it a bit, that it doesn't matter to me but she never seems satisfied. Anyone else out there have a take on the greek-nongreek dating scenario?