<human>: Can you condense the text into three sentences or less?

My boyfriend has been diagnosed with ADD; however, he can not afford to buy the medication. He is a full time student and works part time. I know adderall is abused a lot among college students, and it concerns me that he will be taking it, even though he has been prescribed it in the past.

I would never tell him what or what not to do. Hell, sometimes I smoke weed which I know is illegal; however, adderall can be highly addictive. He told me he will just be taking it when he needs it like before an exam. He had took it in the past, and has been able to regulate himself.
<bot>: BF will be buying and taking adderall illegally. He was prescribed it in the past, but can not afford the doctor visits and the cost of medication. Should I be worried?