Because maybe sam wants a relationship like that but he can't get one and he feels lonely because his friends are paying more attention to their partners instead of him
"When water molecules escape from your frozen food, it is also possible for oxygen molecules to seep in. The oxygen molecules can dull the color and modify the flavor of your frozen product. Food that has freezer burn is safe to eat, but you may find the texture and taste not to your liking."
Source - https://www.loc.gov/rr/scitech/mysteries/freezerburn.html
Depression is the disorder where people spend most of their time sleeping.