It could be about people giving up on life and becoming addicted to drugs. The main character is providing the drugs but he is also saying that he could help her. "I could be the jumpstart..." could mean that he could help her sort out her life and get off drugs. It's strange because he wants to help her but is willing to keep supplying her with drugs. He might think that her life was so tough that she needs the drug to survive.
It could be about people giving up on life and becoming addicted to drugs. The main character is providing the drugs but he is also saying that he could help her. "I could be the jumpstart..." could mean that he could help her sort out her life and get off drugs. It's strange because he wants to help her but is willing to keep supplying her with drugs. He might think that her life was so tough that she needs the drug to survive.