The authors wrote that they were surprised too and went back to talk to the students and apparently there was an unwritten rule that you don’t date the ex of the new partner of your ex. So if Bob and Alice split up and Alice starts dating Ben, then Bob should not date Ben’s ex Alison.

I’ve spotted five cycles.

1. The big boy.
2. Six member cycle at the top of the big boy.
3. Four member cycle with that guy who slept with nine girls.
4. A second cycle with that same guy.
5. That three way over to the right.

It’s possible there’s more but I’m pretty sure that’s it.

Also feels weird there’s only one same gender connection (female to female) as far as I could see in that whole thing…