It's not that you don't love your sweetie, it's just that you find your dearest one to be a pain in the butt. While you are courageous and fearless, wanting only to go and do and strive, your lover is like a big bucket of cold water on your hot impatience. You are reminded of unpleasant realities, and not in a very diplomatic way.
You are often made to feel like a silly child, rather than a competent adult. Inside you feel like a rebellious teenager, wanting to stand up to the strictures your sweetie places on you, and break out of the box you've been enclosed in. If you're really in love with your lover and determined to continue, you both must be willing to pay the price. You must cool off a bit, become more of a listener and thinker and less of an impulsive doer. Your lover, on the other hand, must stop squelching your ideas wholesale and learn to be more supportive and loving. Together you could create a great big beautiful grownup relationship. But this can only happen if you stop wasting your energy on strife and start channeling it into positive directions.