Name disagreement...

Katy • 25 R.i.p my sweet baby 01-22-16👼🏼 Mommy to Barrett 03/13/17💙 TTC baby #2 YouTube channel Katy Goodwin
Soooooooooo. Me and my husband agreed on our sons name being Barrett his middle name was gonna be coal for the longest but iv started to not like the spelling of it he likes "C O A L" and won't change it to Cole  so yesterday I was going through some names that started with an M because he said he wanted to find A middle name that starts with M  so I came up with Mason. Because Barrett Mason Goodwin sounds so cute and it's a normal spelled name. He was on Xbox with his friends yesterday when I asked if Mason was okay he said whatever. Well today he said he don't give a shit what he said yesterday and that's it's gonna be coal. I feel like I should have a say in OUR sons name but nobody can argue with him if it's not gonna go his way he's not gonna have it. What do I do? Cause I can't talk to him about it he don't listen.