Hey, I'm so sorry that this happened to you. That has to be such a difficult situation to navigate. And only you two can know what's right for your future, either together or apart. But truth be told, miscommunications are part of marriage. Challenges happen, especially when it comes to spending money, and those are things that you need to work through in order to allow for any happy times within the marriage. My FI and I were blessed to do some premaritial classes to talk about communication, finances, etc. and I would really recommend trying that or at least talking through the issue of the house payment and working those things out before committing to spending your lives together.