Don't like fat people
Fat people do not pay any attention to their health. Obesity itself is a health problem. Being overweight is a big problem for health. Also, fat people smell a lot. They have no respect for themselves. They're like a cesspool. Being unhealthy is like a target for them. A person who does not respect himself will not benefit anyone.
Do not expect too much from a person who has no discipline about his own life. You will be wrong, you will be left in the middle, it will let you down.