Why?? Help!!

Kirsten • Im Kirsten, & I'm a mommy to Jazmyne
My fiancé is so keen on names that HE likes. For example Ronin, now everyone in my family is demanding I name my baby (if it's a boy) Ronin Lee so I finally got my fiancé to agree on Sawyer but I'm fond of Sebastian and he says no. Lee HAS to be the middle name. Cause "that's everyone's middle name." 
So I'm fed up!!! What do I do?!