What Happens to Real Nice Guys

There's this anime trope my sister and I were talking about recently: the nice guy who wins.  It may not necessarily seem like he's winning because there are scads of annoying girls around either beating him up or forcing their affections upon him with various degrees of enthusiasm and success, but that in itself is supposed to be winning.  He is desirable, and girls choose him.

In real life, this doesn't usually happen. The nice guys we know (especially Christian guys), the ones who deserve to get the girl because they will love and cherish the girl and will remain faithful in sickness and in health as long as they both shall live usually get dumped by the girl because she is looking for "something else," though she claims to be looking for a (God-fearing) man who will love and cherish her and stay with her as long as they both shall live.

When this kind of thing happens, it makes me a little angry, especially as a woman who is happy being gifted with contented celibacy. At times like those, I wish I weren't celibate because someone needs to love and appreciate these men in the way that they deserve, and I am out of the game forever.  Love is at least partially a choice, an act of the will, and it seems like too many single women seeking mates are too busy wishing to look at and really see the Prince Charmings around them.

I cannot understand why so many bright women desperately looking for mates overlook all of the wonderful men around them because they're "too nice" (i.e., won't make out in public) or are geeks or nerds. Liking video games or anime (a lot) doesn't cancel out a nice guy's other qualities.  Being a fan of dating sims or being a little bit socially awkward shouldn't automatically disqualify a really nice person as a potential love interest.  But it does.  All the time.

What do you think about why nice guys seem not only to finish last but to finish lonely or at least wait lonely for longer than they should have to for someone to discover how great they really are?  Ladies (if this applies to you), why is it that you'll pine for a boyfriend or husband but won't really make the effort to look for someone who has the necessary qualities if they don't make you feel all sparkly?  I really am curious.