Is she being a good friend?

I asked my female friend to stop going over to my ex’s with her partner due to my ex partner is a pedophile and serial cheater she still chooses to go over to his house I think my ex is using her to keep tabs on me due to his mate added me. She telling others I told her not to go over to my ex’s. She still chooses to. He took it as I was being controlling than she said to him no I’m not being controlling.
Is she being a good friend?
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