I HAVE A QUESTION!!

I am interested in a NPHC sorority, whose name I shall keep to myself. The members of the sorority know me and know that I am interested. About a week ago I attended one of their functions which was a party. While at the party I was dancing by myself like a lot of other females were. Two members of the sorority approached me and told me to dance with a guy. Now this question is directed to females in NPHC sororities. Why do you think I was told to dance with a guy when I was having a good time dancing by myself like a lot of other people were. I was wondering has anyone else heard of situations like this? Is it looked down upon if you are not dancing with a guy at a party? I would like to hear any comments or opinions that people have.