How should one react if my boyfriends friend said I’m “way thicker” than what he likes?

Anonymous
I mean all his his ex’s are very petite / thin. He told me he likes me bc he hasn’t been with a woman who didn’t have small breasts and he always wanted to try something different
when I asked him “would you have preferred if I was thinner” he said “well not really I met you how you are and I’m obviously attracted and after everything we’ve been through you not being tiny isn’t a deal breaker”
I’m 5”9 and 182lbs his ex’s are like 5”1 115lbs to 130lbs and he’s 6”1 and 140lbs himself
How should one react if my boyfriends friend said I’m “way thicker” than what he likes?
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