I hear where you're coming from in your edit. My mother never respected my feelings, hopes, dreams or needs, and as an act of healing, I raised my daughter as my "emotional" equal – worthy of equal respect. She did learn to follow rules, cheerfully and early, and I'm convinced the respect I gave her actually helped. She made good choices BECAUSE she learned to respect herself at an early age, and she's a terrific mother, caring daughter, and successful career woman today. So good for you, CaliMomma – I think this approach will probably serve you well.
Considering your mom's habit of disregarding your stated needs, you probably can't expect her to change much now. But you can change how you "react" internally.
I really struggled with it until my 40's, but one day I just "got" it that my mom is a bossy, controlling, and not always rational person. She will always be so. But I learned to let it roll off once I realized that she's not "god," and I have at least as many smarts about life, and my decisions are actually thoughtful, sensible, and balanced. My mom has screwed up her life in some pretty significant ways, and lives in a state of religion-inspired fear that affects everything she does these days.
When in a position of not wanting to hurt her feelings, I have a couple of basic responses that serve me well. You might try these on in front of a mirror and see how they feel to you, and probably how they look/sound to your mother.
"Mom, you care so much about my choices / future / happiness / safety / whatever. I hear what you are saying (and repeat in my own words so she knows I got it). Thank you for loving me so much." (And then stop – don't argue, explain, pout – just stop there.)
Alternately:
"Mom (or Dad), thank you for sharing your concerns with me. I hear you would like me to __________. And no, that will not work for me." (Again, no arguments, explanations, etc.)
And of course, there's always the evasive answer – you don't know what the future holds. You could meet The Love of Your Life next month, or never. So why worry the subject?
My best to you and your future.