Would you use a name that your husbands ex had picked out?

I’m pregnant with our first girl and I fell in love with a name. When I asked my husband about it he got all awkward and said he didn’t like it. I asked him why and he said that his ex always told him that was the name she wanted if they ever had kids. His only other serious relationship, they didn’t have kids together. I’m really bummed. I LOVE the name.. he said he does like it but it would just be awkward if we did name her that. But why does it matter? They never had kids, they haven’t been together for years before we got together and he has no ties to her what so ever. Would it be weird?