I felt responsible for my friends little sister's safety and she told me she was suicidal so I only let her have the heroin if she took it with me.
This is where you accepted personal responsibility over your own intake, no one forced you to do it and no one forced you to purchase more the following week.
There's hundreds of ways that you could have chosen to handle it, and instead you chose to take one of the hardest drugs. If this was really about her safety and you knew the risks involved with it, then wouldn't you have instead tried to steer her (and yourself) away from Heroine?I did try but she would have just gone to someone else who wouldn't have cared that she might kill herself with it, wouldn't have cared about the quality of the shit, would have taken advantage of her.
That first stint of us taking heroin, after a couple weeks I said enough and sold it. But she kept wanting it and she wore me down.
Why did you have to take it with her, and how do you figure she'd have gotten Heroine without the money to pay for it?
Pretty little thing like that could get it no sweat
But she was scared to take it alone, and went for you because of the association she already had with you through her older brother, your best friend, right?
If you hadn't taken it, her odds of chickening out would have been significantly higher and you would have avoided "ruining your life" or whatever. You could have talked to your best friend about what his little sister is trying to do to herself to get her the help she needed, you could have turned her down and then did creepy stalker shit to make sure she doesn't take Heroin with someone else, it didn't have to go down like this.