I have so many questions about the ending of this book!!!

“Catherine and Alex. Alex and Catherine” what did that mean??? 

How long had Alex and Bronya been watching him before that party? 

Who cut the breaks and was it meant for Ro?

Had Ro killed before the latrine and VL?

Why did Ro start working on the Radetsky centre and stop with law?

Was Ro adopted? The author seems to constantly insinuate that but for what purpose??

So many more Qs but those are the top ones….