<human>: Alright, so I have a good male friend who recently has been seeing this girl, B. I was initially thrilled for him until I found out who she was.

This is the girl who outed me to my very conservative family. I was already on thin ice because of the rumors, and her words and evidence was extremely compelling. Reddit, I was robbed the opportunity to inform my parents in a tactful manner, and as a result of her telling my parents I'm gay, we now have an incredibly strained relationship (which is actually an upgrade, because they had disowned me). 

I have made amends with the situation by resolving to never interact with her. And in some aspects, I've completely forgiven her. I don't think she's that bad of a person, maybe just immature at the time she told my parents. Now that my friend is interested in her, I'm worried that he'll mention my name, and she'll just say terrible things about me. But at the same time, I do not want to tell him my reasoning, because it's embarrassing and upsetting, and I really don't want to stir drama. 

What is a tactful way of informing my friend that I don't want him to mention me to the girl he is seeing? I don't care if he sees her or not, just do not want to interact with her in any way. I also would rather not disclose our history, but definitely can if that is necessary.

Can you give me a shortened version of the text?
<bot>: Girl outed me to family. Friend is seeing girl now. Want to tell him tactfully that I don't want him to mention me to her, and her to me.