The invisible cub

New cub within the pride lands. Who is she? Whoever she is no one likes her. She's not happy at the Pride Lands. So she goes back and force between both prides. Why does she go there and come back with another lion? Simba try to talk to her. Simba secretly likes the random cub but then discovered who she was. He doesn't care who she is but his feelings for her didn't change.