strange lady

Why doesn't F ask J for help?  
F used to ask J for help.
But she askes M for help recently.
When she went out of company, she always put her notebook under J's desk.
But now she puts everything under M's desk.
Does J refuse to help F?

I don't like this lady.
Maybe she used to be beautiful.
But she looks beautiful but insincerely.
She paid much attention to her face, her hair, her clothes, her shoes.
But she is ugly, I think..