I've posted on my situation before, but I'll give a condensed version here:
I transferred to LSU in the Spring of Freshman year, when there was no formal (or informal) rush. I rushed formally in the fall, and was cut from 8 of the 10 houses after round I. I was cut from my top choice of the 2 for pref, and I just dropped out from rush. A friend had me go to an informal for her house in the spring of that year and was told they had to cut me because I had been cut by them before. Last summer, I started regretting dropping rush, so I decided to go through again as a junior (hence the nick, juniorgrrl

). Because of the cut once, cut always rule, I was cut from 9 of the 10 houses after round 1. The house I was invited back to cut me after round 2 (despite having a friend in there who I know was pushing hard to get me in). This spring, the same house I rushed informally the year before called me back. They bugged the hell outa me for a week, making sure I'd come to their party and then never called me back.
Am I worse off for not being greek? No. Am I bitter? A bit. Does it screw with your self-esteem? Somewhat. I still see girls and go "Wow, she's an XYZ?!?!" and wonder what they have that I didn't.
My choices are exhausted for joining a NPC group as an undergrad @ LSU. I've been cut from all 10 houses and therefore, they couldn't take me, even if they wanted to
But hey, I still think I'm cool