Just as women state that they are not vending machines where you put in time and attention and then sex automatically comes out, so women need to understand that men are not machines where you put in sex and an engagement ring automatically comes out...
Why bother with a reasonable compromise. It'll just get deconstructed and dismissed, anyway.
Women aren't that hard to figure out. You just have to learn to ignore the faux "complexity" they profess; pay attention to what they do, or want to do, and they make perfect sense, even to men.