How to deal with this

So my fiancé recently revealed that many of his relatives asked him about why is he thinking of getting married to me, that he is so handsome he could get anyone and he should wait a bit more and not rush’ (we are both 30)

And he continued saying that I dont give a fuck about what anyone says.

I have always been aware of the fact that he looks better than me but these constant opinions of others have made me insecure as there have been other instances as well.

I don’t know how to deal with this feeling.

Has anyone had similar issues?