Why did my friend tell me to stop speaking to a guy she was speaking to?

So I went out with both my friend the other night to have drinks. One of my friends went to the bathroom and then my other friend told me that she was speaking to this guy she met through online dating and was seeing him. She told me that he mentioned me and that he also matched with me on online dating and was interested in me, and she showed me a picture of the guy and asked me if I’d been speaking to him. I said I’d never spoken to him before ever and that I’d deleted all my online dating apps. I told her it would probably have been another girl in the same area with my name. Then she proceeded to tell me that I shouldn’t speak to him as he was already obsessed with a girl called Gemma, and that I would be wasting my time speaking with him.

she then sent me a photo of him as a private message and I had to keep convincing her that I’d never spoken to him.

When ever I meet up with her all she wants to do is talk about guys. She will brag to me about how many guys fancy her and how many guys buy her flowers and perfume. She even told me that when she goes to the gym guys don’t speak to her or ask her out because they are intimidated by her. It gets very boring when all she wants to talk about is her conquests.

why did she bring this up and tell me to stop to a guy she was seeing who I had nothing to do with?

Why did my friend tell me to stop speaking to a guy she was speaking to?
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