Should all expenses be split evenly, even within a marriage?

The woman in this story, who shared her story on the AITAH subreddit, found herself in an interesting situation. Her husband earned a lot more money than she did. It’s not uncommon to have mismatched finances going into a marriage, but it’s definitely important to talk about it beforehand. And they did. They even drew up a prenup. But just because you have a plan doesn’t mean that you’re good at implementing these things into practice. That’s what happened to this couple. Once real-life expenses started to come up, everything they had planned on went down the drain. But the wife in this story was pretty confident that she was in the right. After all, his company was the one that was forcing the move. Why should she have to chip in extra for something that they were already covering?