Help me find a name.

[velkoria.livejournal.com]

I am writing a story and I need help naming a character... Basically this is what I want for her but the names I've tried haven't stuck.

She's a bit on the shier side but has a wicked bad temper if that helps at all.

Dark hair and eyes and fair skin, born and raised in the US (so no foreign names).

I want her to have a name that would fit in this day and age but nothing oonique or kreatiff. Also, the name needs to be shortened to a more 'gender ambiguious' sounding one syllable nick name.

Names I've tried/nicknames:

Kimberly/Keek/Kiki (and then I happened to watch an episode of the Kardashian and that died).
Susan/Sue (not necessarily masculine).
Katherine/Kate.
Katherine/Kit (from Kitty).
Cate/Cat/Kit (I really liked the name Kit for a while but was never convinced 100%).
Romina/Remy (really loved this one but, again, it didn't stick).
Josephine/Jo (too overused).
Danielle/Dani (but then my male lead turned out to be a Daniel with the nn Dani).
Mariela/Mara (loved it but seems too latin for her)

And now I am stuck... I wouldn't mind more "different" sounding names like Willow, Willa, Lily and stuff but I don't know... I need suggestions asap!