Almost 20 years ago, my wife made more than I did, but she wasn't happy. She wanted to quit her job and start up her own business. I didn't even consider saying "no", because I knew that if she wasn't happy in her job, she wouldn't be happy in her life. If she wasn't happy in her life, she would make me unhappy in mine. We didn't have a house, but were looking to buy one. We put that off so she could start her business. She made no money for several years, and I supported her in that. In the meantime, I progressed in my career and she supported me in every decision I made, even when I was unhappy and quit my job to go look for another one. Her response was, "We'll figure it out. You need to be happy." When it came to our careers, we only ever supported each other's decisions. Today, she makes executive level money, loves what she does, we live in the house we want, in the neighbourhood we want, and don't worry about money because we don't have to.
My point is, that regret is a b!tch. Years from now, if you both get to do what you want with your careers, you'll be much happier, have few regrets, and you'll look back on these times and realize it wasn't that bad, and you'll be thankful you supported each other.
Or, you could suck it up, let your current situation control your future, and hope that regret doesn't drive you apart and make you wish you'd taken a different path. There are a lot rich people that are unhappy and a lot of poor people that are happy. Old people rarely look back on their lives thinking, "I'm really glad I worried more about finances than my relationships. Look at all of the money I have as I lie here all alone on my death bed."