I had a very horrible experience with southwest. Southwest flight attendant acted poorly and unprofessionally. I was attacked by a copassenger who shoved me and elbowed me because I put my hand on the middle seat arm rest. I called the flight attendant. When I shoved her hand back the flight attendant instead of listening to why i called the flight attendant....instead yelled and threatened me. Her behavior and comments made me feel threatened and he behavior was unprofessional, prejudiced and completely inappropriate. I had a bruise on my left side due to the elbowing by the passenger .