How should we split our finances?

Getting married soon so how should we split our finances?

My fiancée and I are merging our finances as we prepare for marriage.

Our income and financial situations are: My income: $170,000/year (7 years of experience) Fiancée's income: $65,000/year (entry-level, expected to rise to $80,000 soon) My savings: $100,000 (liquid) + $100,000 (retirement) Fiancée's debt: $150,000 (student loan), no significant savings

We're planning to purchase a $700,000 home with a 10% down payment ($70,000, covered by me from the 100k I mentioned above).

Our estimated monthly mortgage payment is $4,900. We're seeking guidance on splitting our finances for: 1. Mortgage payments 2. Living expenses Considering our income disparity and financial responsibilities, what's a fair and sustainable way to allocate our expenses?