I see three male-males, one on the ring itself, one on a long branch of the ring to the upper right, and the last is the alpha dude of the whole school, with 9 partners one of whom was male. Five of the six male-male guys were bisexual, and the last one had only that one bisexual male partner.
One of the two alpha ladies (each with 5 partners) had one female partner who also had a couple male partners.
A very interesting map. Wish I had one for my high school.
