Reaction for ending

In my opinion, the end of the story is kind of sad. First, Olivia just left a paper for Lorenzo, then she left. She was the only person who Lorenzo wanted tell the truth. Second, Olivia was died in the bar because of drug overdose. She was only 33 years old. They promised that Olivia never ever drug each other. But now, Olivia was broken that. I think Olivia was very pathetic, because she didn't have parents, money, and she never get love until meet Lorenzo. So, I think it is a sad ending for this story.