The key to a healthy relationship is not just managing money but understanding how the other approaches money. Every couple argues about money. It doesn't matter if you've been married for 40 years or dating for 4 months, money touches every decision you make as a couple. And when the two of you don't see eye-to-eye on how much to spend or how much to save, that's when arguments turn into ugly toxic fights that leave both persons feeling hurt and...