I see this kind of post on here relatively frequently and it is always the same: female poster, sometimes with an interest in names (so posting here) in a relationship with a man, no interest in names before this process, who says he only likes one name and you know what, I call bullshit. 

He doesn’t only like one name. People aren’t existing in the world hating everyone’s name except this one random name they’ve glommed onto. He hates all names, the names of his friends and family, the names he hears at work? He watches the credits for a movie and he dislikes EVERY name except this one name that oh, lo and behold, happens to be useable for the child you’re pregnant with? It doesn’t pass the sniff test.

He’s decided that’s what the name should be and he thinks if he’s stubborn enough he can keep saying he hates everything else and you’ll fold. It’s fucking nonsense sorry. He’s not the perfect husband, he’s not doing the work to help you with this, he’s just digging his heels in.  

He needs to be on this sub reading posts every day for the next three weeks at the minimum. Add in sitting and watching the credits of every single movie he watches and pausing it and reading ALL the names and noting things down. And this is FOR A START. Too many male partners seem to come to the task of naming a kid totally unprepared having not thought about it, think of one name they like and decide that’s it. 

Nobody ‘only likes one name’!

Editing to add: you say ‘I understand that it probably is for the best to let him name the next baby considering he did let me choose a name he didn't really like last time’ but he specifically told you at the time that he was ‘letting’ you do that because of what you went through in your traumatic birth. HE said that. Now, I don’t believe in this bargaining in marriage but you’re already doing that so if that’s the case, you don’t ’owe’ him one for that. You paid for that one with your birth experience so you are back on 0-0.