I believe that the line from "Helen Grey" which suggests that Helen has an unrealistic sense of herself is the last option - Stoop from your cold height, Helen Grey.
She is giving advice to herself that she should change because nobody will be there for her unless she does that.
False. The monster looks inhumane and ungodly. The monster is horrific. This is why he names the monster Frankenstein
D. he remindes his audiance taht soviets are a peaceful loving people
Well, using my limited knowledge, "cleaving" means to chop, break in half, split, etc. Twain means twice. So, perhaps it's like "you've broke my heart in half", something along those lines? hopefully this helps you.