Una duda sobre la frase "no estoy para nadie"

Leí la oración "No me molestes, no estoy para nadie" y no entiendo bien el significado de "no estoy para nadie." ¿Significa que no quiero pasar tiempo con nadie?

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That just means that "right now I don't want or can't talk to anyone, I don't want to be bothered just now". This usually happens when one is very busy, also if one doesn't feel well for any reason.