to expand on the op's point...

Give gifts. Made from time, effort, that have very little financial value.

I've made memory boxes from wood I've harvested from my own property and given them as gifts.

If you don't have the time or ability to produce such s gift, buy fake stuff... and tell her it's fake.

I've done that too. If a woman likes you, she will be practical and not insulted. Women will excuse almost anything if they believe your intentions are sincere and good... and they actually like you.

What women want? More.

If you try to fill the black hole of female need, you will end up cynical and broke.

And without sex.
No woman wants to sleep with a man who is such pushover.

Female need is meant to motivate men, not to control them.

These situations are an asset to men. A filter. If she needs expensive gifts, she's just not into you.