What do the following words from the excerpt indicate about the creature's interaction with humans? But that cannot be; the human senses are insurmountable barriers to our union.

Read this excerpt from Mary Shelley's Frankenstein:

Shall I respect man, when he condemns me? Let him live with me in the interchange of kindness, and, instead of injury, I would bestow every benefit upon him with tears of gratitude at his acceptance. But that cannot be; the human senses are insurmountable barriers to our union. Yet mine shall not be the submission of abject slavery. I will revenge my injuries: if I cannot inspire love, I will cause fear.