The actions of a person can evoke false hope for another being. It could be that the person cares for the being and wants the being to feel appreciated by this person. But the being gets the feeling that the person likes the being in a way that the being don't like the person. That makes the being have false hope.
It's in the duty of the person to recognise the challenge and address oneself to the task. Because the being is blinded, blinded by the hope that the person is signalizing.