I have a work colleague that I'm in love with.
What about her do you like so much?
I'm attracted to her intelligence. I'll tell you, she has some great ideas about stuff.
Let me tell you, work romances hardly ever work out! You shouldn't act on it, keep it professional.
Our working relationship is not going to work if I don't get sexual with her!
Adding romance to workplace relationships is a recipe for disaster. If things don't work out well then tension and resentment in the workplace is a very real possibility. It's okay you like her, but I'd suggest getting over it and moving on.