What most women don't know is that men and women fall in love differently. While women are generally cautious when considering a man (allowing "love" or serious consideration to unfold only after a six month time frame), men will probably decide within the first four minutes of conversation whether a woman is worth pursuing seriously. About 80% of this is about the goods:

This may sound shallow. This may sound really sad. In fact it probably hurts. But it is the truth.
I can't tell you how many women I know believe they need to "work harder" to earn a man's approval and love. They will embark on self-improvement journeys, attempt to fix themselves (through fitness programs or confidence boosting New Year's Resolutions), or shop their way through designer clothes and make-up to catch that elusive man-fish. Some women even spiral into fits of domesticity - cooking four course meals and organizing their beloved's belongings to make up the difference. The best way out of this fix is to probably stop giving a shit. It's tiring, exhausting, and inordinately senseless. In fact, I highly recommend reading the book, Why Men Love Bitches: From Doormat to Dream Girl - A Woman's Guide to Holding Her Own in a Relationship.
Dare to love yourself and stop it. If a guy isn't into you now, he will never be. Find someone who will willingly eat out of the palm of your hand to snag a man and keep him.