I think the main thing you're doing wrong is that you are actually looking. You don't find love, love finds you.
I have always found that the best relationships come from friendships, so maybe that is somewhere you could start. Stop searching for love and start finding ways to enjoy yourself and have fun. I firmly belive that there is someone out there for everyone, but as other posters suggested acting as hostile as possible is not the way to do this.
Second Life relationships are unpredictable at best and maybe not the best place to find "real" love. I did however meet my RL husband in SL and we now have a child together so it is possible, i do belive however that we are generally the exception rather than the rule. Just be open, be yourself and above all be receptive to new people and experiences. Good luck