Is he moving on with my best friend, or am I overthinking it?

I don’t know if it’s the fact that I am currently upset at him, and haven’t had a decent conversation with him for over 3 weeks but I have noticed he be chatting to my closest friend lots lately he will approach her first usually and it makes me feel uncomfortable do y'all think it’s bc of the current situation or im overthinking?

Is he moving on with my best friend, or am I overthinking it?
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