No. Vorona does is not shizuo's girlfriend. Vorona wants to kill Shizuo, I think. Or at least really admires his strength. Or if it's both.
In the Durarara!! light novel series, Shizuo and Vorona do not end up together romantically. Their relationship remains more of a complicated dynamic as they navigate their roles in the story.
The ISBN of The End - novel - is 00644101610.
The End - novel - has 324 pages.
End Time - novel - was created in 1996.
An End to the Means - novel - was created in 2011.
The End - novel - was created on 2006-10-13.
End Time - novel - has 299 pages.
An End to the Means - novel - has 279 pages.
World's End - Chadbourn novel - was created in 2000.
World's End - Sinclair novel - was created in 1940.
Not the End of the World - crime novel - was created in 1988.
World's End - Boyle novel - has 456 pages.
World's End - Boyle novel - was created on 1987-10-08.