Any guys want to take this one? I don't know what the criteria is for certain chapters (even the one I am sweetheart of) but being sweetheart kind of mean's you're that fraternity's "girl." It is actually hard for me to explain. Do you have Men of the Year in your chapter? It's like that except the guys are picking a girl. It surprises me you haven't heard of it, my school only has 5 fraternities and 4 sororities. Maybe the fraternities on your campus don't do the sweetheart thing!