Poor Gwen, I'm sure it will grow back soon.
It reminds me of the last time I left Tiny with my parents. They decided to cut his hair(he was in full coat). They took 1"-4" off and quite unevenly.
His very long 6" hair on top of his head various from 1"-4" long. I feel so bad for him.
Now I'm waiting for his hair to grow back too.