Lots of different things to touch on...
first.. desires are natural. Gen 2:18 - The LORD God said, "It is not good for the man to be alone. I will make a helper suitable for him." and later at Gen 2:24 - "For this reason a man will leave his father and mother and be united to his wife, and they will become one flesh."
But also remember that Paul said it is better to remain single. But for those with passions they cannot control, it is better that they marry. I cannot find the reference for some reason. If any of you know, much would be obliged. If it is better to remain single, then they must not be missing a piece of themselves. We only miss pieces of ourselves without God. He fills every void.God created man and woman to compliment each other, not to fulfill each other.
but... Luke 14:26 - "If anyone comes to me and does not hate his father and mother, his wife and children, his brothers and sisters—yes, even his own life—he cannot be my disciple."
In this, Jesus was not saying to hate them, for that would be a contradiction to His entire message of love. No, He was making a comparison. He's saying you must love God so much that your love for family is hate in comparison. Desires for marriage must not compare to your desire for a relationship with God, or it is a trap for sin.
If you fear hurting someone, then you must not be sure she is the one you are meant to marry. In that case, why date her? What are your intentions? Dating in itself is not wrong.. wrong intentions, wrong desires, and selfishness or self-fulfillment through a relationship are.
Beyond the Bible, I suggest the books Kissing Dating Goodbye and Boy Meets Girl for anyone. They are both by Joshua Harris. Kissing Dating Goodbye is not like it's title.. it's actually about loving God more than a relationship, therefore teaching you how to balance the two in a healthy, blessing-filled manner. It doesn't preach against dating, but against dating prematurely. My pastor gave me both just recently and I can't wait to finish them.