Someone (ahem) had
the presence of mind to QFP.
OP, you said you would be happy with a bid from six of the seven sororities on your campus. I wonder if you received and accepted a bid from any of those six, or if it was the seventh chapter? Is that the source of your discontent?
Or is it for more reasons than that, which others in this thread have mentioned? I do encourage you to seek some support. Obsessing over what you cannot have is a surefire way to make yourself miserable.