In this context, "ugly" likely refers to the person's physical appearance or perceived lack of attractiveness.
The concept of "ugliness" is subjective and varies from person to person. Some may find certain physical features or characteristics unattractive, while others may find them appealing. It is not possible for someone to be universally deemed as "ugly."
First, it is important to listen to your friend and validate their feelings. Remind them that their worth is not determined by their appearance. Encourage them to focus on their positive qualities and engage in activities that make them feel confident and happy. Seek professional help if their self-perception is significantly impacting their daily life.
There could be various reasons for your friend's belief, such as societal pressure to conform to certain beauty standards, past negative experiences or comments about their appearance, or underlying mental health issues. It is important to understand and empathize with your friend's perspective and provide support.
Try to have an open and honest conversation with your friend about how their self-perception is impacting your relationship. Express your concerns and offer your support. Encourage them to seek professional help if needed. It is also important to take care of yourself and set boundaries if their self-perception is causing you emotional distress.