So here's some tea: shared with one of my girl friends about the guy I want to tie the knot with

She basically said some stuff that I found confusing.... She asked me "did you split the bills when you guys were dating?"
I told her we took turns because I can't have someone paying for me all the time.
She said "girl, that was a mistake, don't spoil their habits"
I didn't understand what she meant and I asked her to elaborate. She said, "men will not acknowledge or respect you more for it. A man should never let you spend a penny when you guys go out. I've been there, given elaborate gifts, paid for meals, and it never works out, only spoils them. A man should be willing to take 100% responsibility of you and your finances, no matter how much you earn. This gives them the wrong message."

I still don't get it tbh. But also I'm very naive. I didn't ask her further bcz I didn't want to sound slow. What does she mean though