I just found out that my mom's boyfriend's son (they've been together for a long time so he is pretty much like a stepbrother) is dating a former friend of mine. We used to party together a lot during college, but had a big falling out when I found out she was using cocaine. Maybe she cleaned up, but it's unlikely considering this was just 2 years ago and his son was complaining about how much she goes to bars without him since she's over 21 and he's only 20.
Re: I am biting my tongue so hard right now
If he's family, I'd have no qualms about telling him exactly how she is.
Chances are, when things go sour with her, he'll be angry that you knew about her behaviors and didn't warn him.
Do you think I should say something to him privately?
How should I say I found out who he was dating? I knew her first name, but it's very common. I kinda found out by facebook stalking him and we are not friends.
This is the same girl who my mom's boyfriend got really upset with since she used the "n" word at dinner the first time meeting his family. We were supposed to go, but didn't since DD was sick. DD is biracial (white/black) which is practically his granddaughter. My "step-brother"'s sister, future brother in law, grandfather, and dad have all made it clear they do not like her.
On a side note, I wish they'd just get married already so I could simplify the terms.
This girl sounds like she is still a bad seed.
What if you tell your mom and her boyfriend and let them determine what to do. If you do tell the brother, as long as you are telling him with good intentions, then whatever you say will be the right thing. Good luck!
You may run the risk of alienating him if you tell his parents w/o talking to him (if he finds out you told). I'd say, discretely mention to him the history, but make it clear you haven't talked to her in two years.
I'm not going to lie--you will be treading on dangerous territory. My SIL had a coke problem for a while. I mentioned it to DH, who then talked to her boyfriend. The boyfriend reacted defensively, and then SIL was really, really mad at me. But in the end, the boyfriend made her put the brakes on it, and she claims to be off of it now. Who knows.