My boyfriend always jokes about my weight, what should I do?

Anonymous
Hi, I'm a 21 years old woman. I’ve a relationship for 1 year. And I love him so much, I'm very happy with him. But there is something that bothers me. He's always joking about my weight. My weight is 158 pounds. I’m an overweight woman and I’m aware of that. I’m also aware that I’ve to lose weight. I've spoken to him before about this jokes. He said he wasn't serious, he was joking. I know he’s just joking, but this kind of jokes breaks my heart. I told him that before , but he continued it. Anyway, then I started to ignore these jokes. But now I realize that as time passes I lose my self-esteem. For example, I am afraid to meet his family and friends. I always think people wouldn't like how I look. I wasn't like this before. I think my insecurity developed with these kinds of jokes and I think this aspect of my relationship is toxic. I don't know what to do. I know if I talk to him he will say the same things. Pls help me :( (and i’m sorry of my English, it's not my native language)
My boyfriend always jokes about my weight, what should I do?
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