hahahaha.... this is funny. it reminds me of when i was younger and my gf's mother found my liquor that i was planning on drinking later that night. she was really cool about it and just told me to throw it away. however your scenario is a bit different. whatever you decide keep this in mind, i'm considering both of you are still in high school, right? reguardless of the case, .... her perspective is that her innocent little girl is associating with a punk that does drugs. drug use only will lead to trouble and that is what she is protecting her daughter from.
it will be hard to win or trust and even if she lets you see her daughter, there will always a doubt in her mind. i would suggest just seeing her behind her mother's back because both of you are still young and you have so much time to learn about love. raverboy
...this is just my perspective on the situation...