See the cycle.. she is in denial too.
My gosh.. you have seen thru the denial to the other side. This is all part of it, expecially parents and family of the Addict.
They do not want to believe their son or daughter, sister or brother, is an addict... a DRUG addict.. to admit and accept that was hard enough for you to do.
Don't let them talk you into something you do not want to do. They are feeling bad for different reasons than the ones that are making you feel bad.