lol do you plan on hiding it from her forever?
that must suck, your going to have to tell the truth sometime
jsut tell her..crying or no crying, jsut tell her that you have been smoking bud for a while now, and that you have no wish to stop because its more healthy than alot of other things you could do. maybe present ehr witha few facts. if she really loves you she should accept you for who you are.