Valerie knew that he did not care for his life as much as he cared for hers. Their destinies were intertwined in the most sophisticated way, and the thought of being there for her would be his only motivation since she did not see a way to get him to the pack.
Also, she believed that his wolfy abilities could not completely die because he was in the human world. Alpha Denzel had the most powerful wolf that would not just die because of bullets.
He might just be weak because of the location, so Valerie had hope. There had to be a way for him to make it without being paralyzed. That would be a big problem for a man like Alpha Denzel.
Valerie might love him anyhow, but he would find it difficult to accept and would rather prefer to die. As for the people who did this, Valerie wanted to be the one to take revenge on them as well.