I don’t want her to steal my bsf?

My bsf is Tim and he lives in Germany, while I live in India. I met this girl on quick add yesterday and we bonded over girl talk. Yep, weird af, but anyway, she asked me if I had any best friends and I told her about Tim, and she asked me if I could introduce her to him so that all 3 of us could be friends, like a group yk? But I’m not sure about that. I told Tim and he isn’t online yet lol, but I’m kinda hesitant. What if the girl causes a rift between us? I only have 2 bsfs and I don’t want anyone to cause a rift in our friendship. I sound like a bitch, but I’m truly scared. Do you think I’m just being paranoid?
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Update: But if you think she's nice I'd like to meet her I guess. Lol, you don't have to worry about that you'd still be my bestie you know ❤️

This is what Tim sent me. I said I didn’t want to introduce him to someone I don’t trust yet, I took your advice guys! Thank you, love y’all so much :D
I don’t want her to steal my bsf?
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