is it weird if i’m okay with and enjoy that my girlfriend uses she/her pronouns for me but i don’t want anyone else to?

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is it weird if i’m okay with and enjoy that my girlfriend uses she/her pronouns for me but i don’t want anyone else to?
Do enby people change their names too? Like even if they still present as their gender assigned at birth? I’m not asking to be a prick I just genuinely don’t know and would like to be educated.
the real question is... what is the gender neutral equivalent of lads/lasses please answer
Is there a gender–neutral term for uncle/auntie and nephew/niece?