My husband in my financial mess

My husband is a natural saver, bless his heart. We have kept our financials mostly separate over the years, there is less arguments when the only balance you have to keep is your own. We do split the bills 50/50 though. I manage the bill payments and auto draft (obviously I can spend on ANYTHING). He’s always provided when we need something out of the ordinary bills. Vacations, car batteries, Doctor bills, dinner out he’s got it. This has slightly shifted since I’m earning more and able to save more. However, as I take stock of our financial picture I find he is MUCH closer to FI than I am. I’m actually basing my FI independently. See I’m a doer, and this is how I’ll know we are done. He doesn’t have any credit card debt. We have 1 car payment, and he pays large lump sum principal payments on it regularly. We did wait for our house to be paid off to get a newer and more reliable vehicle. He wants truck for some home renovations we have planned (again we have no mortgage payment anymore). However, there is a clear disproportion of wealth accumulation between us. I’ve always felt, even though our financial accounts have been separate, we were on the same page… until now. Now I need to catch up BIG TIME! I wonder… should I let him to pay more pop up bills and maintenance even though I CAN split it 50/50? Should I consider my savings rate a “bill” and monthly expense that needs to be split? I’m still focused on debt repayment so I have a little time to figure this out. I’ll just have to ponder some more.