Help !!! Baby name arguments ...

I am 35 weeks pregnant with our first baby and my husband won’t even discuss baby names with me since I shot down the one name he threw out at random ! We had talked about baby names when I was first pregnant and both really liked Braelynn. A few weeks ago we were laying in bed and he kept throwing out goofy suggestions (ones I knew he was joking about) and then said Ainsley. The way he had said it made it sound kind of whiny to me and I said I didn’t really like it. That really hurt his feelings and he literally rolled over in bed, ignored me and went to sleep. He didn’t talk to me until after work the next day and now any time I try to bring up baby names he tells me that we decided on Braelynn already and the decision was final 🙄 I’m not 100% sold on Braelynn anymore and am trying to discuss other possibilities with him. But literally any time I try to talk to him he shuts me out. I apologized for hurting his feelings and Ainsley has even grown on me to the point where I could see our daughter named that. But he doesn’t believe me when I say I like it and just goes back to his “we already decided” argument. It is so frustrating that he won’t talk names with me and he doesn’t even budge if I cry thinking about it. I don’t want to name our baby a name that he hates (he told me a couple weeks ago he hated Braelynn) but I’m at a loss as to how to get through to him 😣😣😣