I have been sandwiched between two large guys, too — on a flight where I had to keep my arms in to fit. I am small. This one got us out of Europe during the ash cloud, so I didn’t complain, but I did find an empty seat in back.
When her rights to be fat impinge on other folks’ rights, that’s when hers stop. She’ll probably sue and be a millionaire.
I know how you feel.
I am small and hate being sandwiched between blobs of fat.