Fanfic Research

[shipperx]

So, I'm working on my Nertz plot bunnies and realizing much of my memory of the comics is blessedly vague.  Any information (or links!) anyone could provide would be helpful.

1.  What all do we know about Satsu?

2.  What do we know about Xander's girlfriend Rene?  Which issue dealt with her exit?

3.  Which number issues dealt with the Tibet arc?


Any answers or links would be greatly helpful.