From reading your story & from my own direct experience our addicts can be very dumb & reckless concerning highly illegal activities.
Things can & often do go wrong - bad wrong quickly.
As Ann said above you could end up arrested & in serious trouble with the police. You might end up shot during a drug deal gone wrong. Its all exciting fun & games until one day suddenly its not.
After years of tempting that same fate, I luckily got out. I took a lot of foolish risks with her. I wouldn't do it again.
I am sorry for your circumstance. I am sorry you feel used duped & cheated. As I read your story I felt badly for you but pretty much just said to my self yup sounds like typical addict daily life type stuff.