Baby name fights?

Im only 9 weeks and we're already disagreeing on what to name our child. I have a girl name picked out (it's a family name) and I'm trying not to fixate on it but I really don't like the names he's come up with. I am trying to be open and I explain why I don't like his suggestions but he just gets passive and leaves the room and then I feel like "pregzilla" for making him not want to be involved in naming his child. Does anyone else have a hard time just brainstorming names with their spouse?