re: Does your non-married significant other split living expenses 50/50 with you?

When my GF moved into the house I owned, I didn't make her pay part of the mortgage. I figured I had to pay it regardless as it was my house. She did contribute towards bills, did the cleaning, laundry, cooking etc. It was equitable imo. We are now married and own our home 50/50. We have a joint account for mortgage, bills etc.