I tend to be pretty even-tempered and level with my emotions. My 100% happy probably isn't as high as other people's 100% happy, but on the other hand my 100% sad isn't as bad as other people's, so it all balances out.
As for what I'm looking for, I want someone who is intelligent. I won't dismiss anyone just because their online grammar is less than scholarly, but the person behind the screen has to have some brains. I like women with a bit of sass and know when to stand up for themselves.
I'd like to meet someone who is open-minded and willing to try new things (say she's not into sci-fi but there's a book I just know she'll love and she'll actually read it). Someone who can be supportive and understanding of my interests even if they don't like what I like. A good sense of humor is always a plus, not just someone who can make me laugh but will laugh—or at least smile—at the puns and corny jokes I will make. I do enjoy a bit of cynicism and sarcasm (more of a garnish than the main course). Some nerdiness in her interests is always a plus. Mutual inspiration, that's a biggie. I'd like to be a better person for having known her and hopefully vice versa.