Why is Adolesence 2 Postmodern?

In Rita Dove's Adolescence-II post modernism is shown in several ways. Hyper reality is shown with the seal men, it is never stated that these men are never physically there. This would show hyper-reality because to her they would be real but to the rest of the world they would not exist. Another postmodern part of this poem is how the men Chuckle and then pat there sleek bodies. This shows how the men are celebrating disorder that they have cause with this lady. This part gives me the idea that the lady has problems with her physical appearance because she seems to be sick or hallucinating which can be a sign of her not eating and trying to slim down and the seal men represent society judging how she looks.