What should I do if my boyfriends Mom doesn’t like me by just looking at a picture of me?

My boyfriend showed his mom a picture of Me or a couple of pictures cause we haven’t met or talked yet and I asked him what did she say about me like what does she think and he told me that she said that she doesn’t like me and that he should get a new girlfriend. So what do I do? how am I suppose to make an impression if she already hates me? How am I suppose to act when I meet her?
What should I do if my boyfriends Mom doesn’t like me by just looking at a picture of me?
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