<human>: Could you distill the essence of the text into 1-3 sentences?

So my boyfriend (m18) and I (f19) have been dating for about 8 months. The problem is that he is very self conscious about his appearance due to him being a little chubby (which I really love and always tell him I do). He is usually insulted because of his looks by friends and family and it's having a very negative impact on our relationship. I love him so much. I hate him being sad all the time. I just want him to be happy. I tell him how much I love him and that I don't care about looks at all because I honestly don't. Is there anything I can do to help reassure him? How do you help someone who is self conscious?
<bot>: Boyfriend is very self conscious because of his family and friends insulting him. Nothing I say helps. Having a negative impact on our relationship. What should I do to help him?