Answer:
Frankenstein doesn’t love or accept him, so he can’t know love.
Step-by-step explanation:
The creature is a product of Frankenstein's invention. He created it, but was immediately horrified by it. The creature is then tormented by its own loneliness and inability to know love. It blames Frankenstein in two different ways. First, Frankenstein is responsible for the creation, as the creature would have never existed if it was not for the scientist. Moreover, the creature blames Frankenstein for never loving him, because this has made it impossible for it to learn love. These two reasons encourage him to seek revenge.