I'm glad that you came back and told us the truth. It's not always easy to talk about your life, sometimes it's far easier to talk about someone else's.
This women is best left in the past, it's time for you to move on. The only thing that I'm concerned about at this time is her son, he doesn't deserve this.
You said he needs a good whoopin, I think he needs a firm hand and a lot of love, but unless his mother is willing to get him help, he's on his own.
The mother has already managed to mess up her life, possibly beyond repair, but this kid is only 14, he has a long life ahead of him, he deserves a chance at that life, a chance he won't get living with this women.
If it were me, I'd call CPS, that's probably the best thing that could happen for this child, to be removed from his mothers care. But then again, he'd probably end up in foster care, and sometimes that's even worse.
I don't see a happy ending to this story.