Delta Air Lines review by EVE

Flew a red eye flight from Salt Lake City to Orlando, for some reason I failed to pick my seats when I booked this flight so when I checked in the night before I was unable to choose our seats home. First in line at the gate counter to get seats , only seats available were center seats but, she said that she would try to seat us as close together as possible. When we boarded out popped a new seat for me and when asked she said that a family wanted to sit together, really? to my dismay the guy in the window seat next to me weighed 400 pounds, couldn't put the armrest down between us he couldn't wear a seat belt. Flight was totally full, flight attendants unobservant, didn't check to see if everyone was buckled because at this point they would have seen NO seat belt on the gentleman. Worst 4 hours of my life, went to the restroom and cried. Sat there for about 10 minutes and then stood in the back for 10 minutes which normally is a no no but, there was no flight crew in sight to say anything.