Why don't I take back that rambling stoned sermon I wrote yesterday and say something useful. 8) Edit.
Comb-overs (a.k.a. barcode hair) are pathetic beyond words. Why? You're BALD, dude. And everybody knows it. No comb-over has EVER passed for a full head of hair, and none ever will.
Being nice to a fault is a lot like wearing a comb-over on your personality. Most likely you've got some very glaring personality flaw. You're cowardly. Or cripplingly shy. Or boring. Or socially clumsy. Or lazy. Or selfish. Or short tempered. Or a control freak. Or irresponsible. Or you talk a lot of bullshit. Trust me, whatever it is, IT SHOWS. In fact, you're probably the only one who can't see it.
You probably wonder why no matter how many layers of saccharine niceness you wrap around yourself, people can always see through it, and STILL avoid you for your flaw.
Well, they're not really avoiding you for your flaw exactly. They're avoiding you for your BLATANT UNWILLINGNESS TO ADMIT, and work on fixing, your flaw.
My suggestion for anyone (guy or girl) who's nice and perpetually single:
1. Ask the three people closest to you what your 3 biggest flaws are. Tell them to be very frank with you and promise you won't get angry no matter what they say.
2. Don't defend yourself or even comment. Just listen. When they finish, just thank them and end the conversation. Take what they say to heart.
3. Use the internet to find free online support groups for people with the same flaws as yours. Sounds silly, but no matter what your flaw is, there's a group for it.
4. Take the concrete steps your group suggests.
You can become a better person. You DESERVE to become a better person, in fact. Admitting you have a flaw and trying to do something about it is attractive in and of itself. It shows you're strong and adaptable, refuse to give up or make excuses.
BTW, when I say "nice", I mean overly nice to everyone. Being a pleaser. There is certainly nothing wrong with being nice to people who have shown you they're capable of appreciating niceness. But be cautious, because to many people, nice equals "easy to use". Being nice to such people is like giving pearls to pigs.