There is no amount of reasoning that will make her change her mind. So in the end, she is always right because there is no other option. That is incredibly frustrating and I end up being neither “right” nor happy.

that’s why you break up. that isn’t a good relationship. you are going to be miserable and it’s only going to get worse.

I’m much happier single and learning, than dating a stubborn/stupid person who makes both of us miserable with their horrible decision making, who expects me to be the only adult in the relationship. Especially as I want to have kids too, and it would be many times worse.