As the others have said, "Melissa" has some very large issues to resolve, and for your own well-being, as well as for herself, she needs to resolve them ASAP.
In the eyes of the Witnesses, "Melissa" is a dead do-do. Because she has been fornicating and smoking and drinking on a regular basis, and has been keeping it a secret from them, she is "unrepentant" of her sins (in their eyes) so she would be disfellowshipped (ex-communicated) quicker thatn you could blink! So the minute "Melissa"'s double life comes to light, the world that she has known since birth will crumble around her.
So Melissa does all these things, living two lives. And then she says she wants to bring up her kid as a strict JW. Yeah right! How stupid does she think her kid is? Already he would be observing her behaviour. And if she tries to teach him different, while living another way of life, what does she expect him to do?? Kids may be naive, but they ain't dumb. "Melissa" is really dumb if she thinks she can deceive him.
Plus she's deceiving all her friends, her own family. If she's capable of being so two-faced, how do you know she won't try to pull something over you too, sometime in years to come, texasbred?
Why can't she be honest with herself, let alone with her nearest and dearest? She seems to be living in complete denial of who she is and what she is really doing.
I really feel sorry for her. She is one mixed up kid who needs to grow up emotionally.