Julie, It has not been an easy ride. I was always the saver and she the live in the moment type. We were together for a long time before we got married so I thought we both knew what we were getting into. It wasn't until we had our first child and she quit her job to a SAHP that things got really stressful. I went into mustachian overdrive and she focused solely on the baby/babies.
I used to be so envious of the couples on this forum that were on the same page and were just killing it towards FIRE. However, I remind myself that one of the main reasons why I married her was because she was so different. She opened my eyes on how fun life can be by not thinking about opportunity costs all the time. Sure we may get to FIRE a decade or so late, but I wouldn't want to get there without her.