Is it wrong to be very friendly with a man I’m not interested in?

I’m a very bubbly, chatty person by nature. One of my best friends told me that while it’s understandable to be a social butterfly, I have to be aware of how that might be perceived by men, when we used to be romantically interested in each other.

I’m not still interested in this man or other men who may or may not be interested in me. I’m just really friendly to everyone I know. I don’t mean anything by it and often I get bored, so I talk more. My friend said he’s pursuing me and that I should expect him to make a move if I’m not careful.

Is it wrong to be very friendly with a man I’m not interested in?
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