My crush likes my boyfriend, how do I tell her that he's my boyfriend?

I just made friends with this girl. She's really nice and so sweet. We were talking about guys and she admitted to which guy she liked which was my boyfriend. She doesn't know that he's my boyfriend and I don't know how to break it to her. I mean she's been asking for advice on how to impress him and wonders what he likes.
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+1 y
sorry not crush i meant new friend
My crush likes my boyfriend, how do I tell her that he's my boyfriend?
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