A woman purchased herself an extra seat on her flight for her own comfort and security. She explains in her story that she is a fairly large gal and prefers using this method when she travels so that she can have a comfortable distance from other people. This sounds like an excellent and polite consideration that speaks volumes of Redditor u/Tessy23's character. It's a shame that not everyone shares that consideration for others. For, it wasn't long before a couple on the flight decided that u/…