It's rude to tell someone that they eat too much.
Adrian's sister has been putting on a lot of weight recently, and he is worried about her health.
Adrian wants his sister to be at a healthy weight.
Adrian has a conversation with his sister about how he is worried for her health.
Adrian tells his sister over lunch that she is becoming fat and ugly.
Adrian's sister tells him that she will try to work on it and ends up losing some weight.
Adrian's sister swears at him, storms off, and stops talking to him altogether.