What is happening?

My friends have been trying to reach out another friend of mine who disappeared, blocked and ghosted me after starting dating and after 3 years friendship. He is a 28 years old who seem to be manipulated by a 20 year old girl, I haven't been doing anything but this girl can't stop messaging me calling me names like a little kid, my friends wants to talk to him to understand what is going on and not her but seems like she keeps getting into other people business and she makes the guy send her screenshots every time someone messages him, seems like she's his owner. This whole situation is so fucking weird
What is happening?
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