I've liked plenty of people who didn't like me, or liked me but couldn't be with me (married, etc.)  Usually, the feelings just go away on their own after awhile.  Trying to convince yourself you don't like someone is easier said than done.  I don't really think it's possible.  You can remind yourself of their less-than-cool qualities, but feelings aren't necessarily rational enough to think, "hey.  he's lazy/rude to waitstaff/not ambitious enough/has a funny laugh.  I don't feel that way about him anymore."

Usually, it's happened that one day, I'll realize that thinking about that person just doesn't do what it used to do for me and I'll realize I'm not attracted to them anymore.

But then I'm also a bit too unfocused to crush on the same person for years.  I get bored eventually.

I studied in a girls school throughout 7-12 grade in Hong Kong and never got to socialize much with guys. Then during a joint-school activity with a boy's school, I met this guy and instantly fell head over heels for him. Problem was, he didn't feel the same way for me. It took me 2 years to get over him by simply indulging myself in anything that kept me busy: music, projects, books, friends etc. 2 years isn't short, I gotta admit but I'm great now. Still single but happy. :)

I can't believe people take that book seriously.

It should be common sense when someone isn't into you, but if for some reason it isn't readily apparent, then maybe your friend should try making a move instead of just 'crushing'?

Indeed. After awhile I just gave up.  Not going to try and break myself over and over again.. At least that's my mind set these days anyway.

lmao wow i remember having a couple crushes first was my first grade teacher freaking hot and then as i got older i realized i no longer needed naps or more crayons to have fun and then i had a crush on my 3rd grade classmate named monique wow blonde hair blue eyes a little chunky but i did not care and then i had a crush on someone else but seemed to die off very quickly
i never ask some girl im crushing on if they would go out with me nope i would have to pump the brakes on that one i did date this girl for like a month or so and when i first brought her to my house all i wanted to do was get laid and shes like no i want to wait for the right moment so we ended up making out for like a half hour and then after that i pretty much ignored her because for 2 reasons one is that i knew i could not keep her happy for long periods of time and second i was not going to last long because waiting is not one of my strong points
having said that i really have no advice to give because i have never had anybody have a crush on me before so there u have it

Your friend is already his and he knows it.  This is how men think, there is nothing better then having a stringer full of fish, as you catch more, you take the little ones you don't want off and put the new ones on.  You don't want to be on the stringer at all.  When he catches you...you want him to stop fishing.  Another one, when a Male lion has a pride of woman then he has them, he protects them everyday; something we men don't have to do; which kinda sucks.  But if a better Lion comes around and threatens that... then he is all ass.  If the other Lion is better and he loses? he loses the entire pride.  This is why weak men are uncomfortable around other guys, because let's face it they may be a bigger and stronger Lion.  Guys like to be proven and challenged everyday, your friend doesn't do that.  Tell her to go find another Lion, when he sees this he will either come to protect what he "thinks is his" or he won't...either way she gets a Lion.

Uh.. easy... just fuck someone else. Sure it might create deep emotional conflict and will probably be hard for you to even think of doing (depending on the strength of the crush)... but its the simplest, most effective, and most fun of all ways to get over an unrequited crush.

So, why doesn't she try going up to him? That's the thing I see missing. Don't blame it on the guy entirely if you haven't tried anything yourself. He can't read your mind. 

First would be, telling him how she feels and if he doesn't like her back--she needs to move on and find somebody who does like her back. >_> 

maybe start reading quality literature first... not chick lit.
and if she wants a date with him she should just ask him. it's not that hard.

Hahahaaha, you don't, well I don't. I just don't let it affect my life.

I had a crush on this boy back in high school. It got to the point where whenever he's in the room, every move I make becomes self-conscious. I don't even know why I was crushing on him so badly because he never talked to me and was kind of rude. [He was assigned to sit next to me, but then one day the teacher let us pick our own seats. He got up right away and said under his breath "finally"] I think the reason I had a hard time getting over him, even after he said that, was because I could never have him.

I eventually got over him when he moved schools and I got a boyfriend..but sometimes I'm not sure how I were to act if he came back into my life and is in the same room as me. Even with a boyfriend..would I still be self-conscious?