As a man, if you ask a woman if she is willing to do 50/50 you already lost. You should want your girl to give 100 (not just financially, but also physically, spiritually). The way for her to give a 100 is to convince her that her life will be better with you in it then without you. You gotta get her dedicated to the cause. Y'all might think it's just running game but actually the best way to get her to be down is to actually believe in it yourself. Once she is dedicated, you can then decide the logistics of finances, chores, etc.
Most dudes are doing things in reverse. They ask about 50/50 before getting her in a state of mind where she's down for them. So of course the girl is gonna argue, she doesn't even like you yet, let alone love you...
Most dudes are doing things in reverse. They ask about 50/50 before getting her in a state of mind where she's down for them. So of course the girl is gonna argue, she doesn't even like you yet, let alone love you...