I've read of Men divorcing wives because they become a spending machine,will not stop,always looking for sales,coming back and saying,"Look at all the money I saved".....

My first two living together LTRs, we had combined finances but I made almost all the money, half of which I lost at the end of #2 which lasted ~10 years. I managed all the finances in both of those relationships. My 3rd live together LTR we had separate finances and she managed her own stuff. Against my advise #3 sold her house after moving in with me and didn't reinvest the $. I paid the mortgage, property tax and insurance. We split bills equitably and she paid me rent since I was paying for the house. I gave all of the rent she paid back to her at the end.

Since then I've had a series of monogamous relationships where my girlfriends stayed at my house a lot but never moved in. I'd not combine finances with anyone who doesn't have similar assets and isn't willing to sign a pre-living together agreement on finances.

Frankly, if you have high earning potential and your partner doesn't, you are likely to lose out big time if the relationship crashes and burns. I wish I had thought that through before #2. Hindsight is 20/20. Luckily, I never had kids.

We paid the bills by combining our income, then split the remainder 50/50 between savings and play money.