On my campus, Phi Delts are very 'closed'. If that makes any sense. They have very tight control over their members, and one of the restrictions is that they are not allowed to date Sigmas. Yes, that's what I said. Not
allowed to date us. (I think it stems from about 10 years ago-there was a falling out between one of us and one or two of them, and they spread so much untruth about us that our chapter size reduced by half in the span of two years
) (Not a problem any more, though, we are initiating to quota tomorrow night, and I believe we are the third largest house on campus again...
)
We have not participated in a major event with them since 1995. This is very unusual, as we have 6 sororities and 9 fraternities (one of whom just got back on campus this semester, and three of which are small enough that they are always paired with another fraternity
and a sorority). Greek Week pairs are chosen for us, and homecoming is done by fraternity invite. Seems fishy to me...
What frustrates me the most about the whole situation is that their advisor is the campus Priest, whom I greatly respect. I don't think he knows about half the stuff they do when he's not around.
I will say that they are not ALL like this-there is a very nice Phi Delt in my (very small) department who sat next to me in class last year and always says hello when he sees me on campus. (Granted, I don't fit the stereotype of what they think Sigmas are...but that shouldn't matter.)