Here goes.
My brother who is in his late 30’s and a great man has recently introduced me to his girlfriend,he has confided in me he intends on proposing to her on her birthday in October. My brother and I are very close due to family circumastances. He is a widow having lost his first wife 3 years ago. This is his first girlfriend since and they have been dating for 4 months. They met abroad as they were both working, hence this was the first time I met her. I thought she looked a tad familiar when I said hello and i racked my brains as to why I thought she looked vaguely familiar. She seemed fine. Polite and I was happy that my DB seemed happy after years of sadness. While saying good bye I suddenly got this awful feeling in the pit of my stomach. She was a girl who bullied me for 18 months at school. She literally made my life hell. I moved schools and had not seen her since she was about 15. Our school had a huge catchment area and she lived on the other side of where we did so never saw her again. The awful feelings I got resurfaced. I mentioned it to my DH and we both agreed as she seem really nice and pleasant not to rock the boat as it was a long time ago. Last night we met up again. During our conversation my brother mentioned schools. He is 8 years younger than me so didn’t go to the school she did and had no Idea about us. She has told him she went to a totally different school. He then said we were the same age so would have been in the same school year. I just said yes and left it there. I went to the toilet and as I was leaving she was stood there she said to me. She knew I knew who she was from the past and I would i not to say anything as she loved him. I was about to say it’s in the past and let’s leave it there. But she then said if you do say something you will regret it !!!! I will move home away and cut you out of his life. !! I was mortified. I felt shaky all like I did as a kid again. Don’t know how I kept my composure to go back to my DH. She came out all smiles cuddling my brother.
Do I tell him. I love my DB so much and I can’t bear him to be hurt but I worry she will pull him away and I will lose him.
AIBU?
Bullied at sch by DB GF and she is still the same. Do I tell ?
Highfivemum · 12/09/2019 14:04
Good luck OP 
You're doing the right thing.
Reassure him that you love him and that it's been great to see him so happy but what you have to say will probably upset him but you have no reason to lie and just want what's best for him.
If she corners you again just start making a scene "ouch omg what's wrong with you why would you push me, quick brother/husband she attacked me in the bump I need to get to hospital" 
Good luck, you are doing this with the best of intentions.
I was all for not saying anything and putting it down to her growing up and now feeling awful...until the last part! What a fucking bitch!
Obviously she has left you no choice, you can’t in full conscience let him propose while knowing how utterly awful, sneaky and sly she is.
Sorry she has put you in this position.
Just remember your DB might not take the news well but I’m sure given time he will see this was the only thing you could do.
It’s so important he knows what has gone on so he can make his own informed decision, had you not told him her mask would’ve slipped eventually and and you would’ve felt even more awful that you had the information to let him see who she really was sooner.
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