Sorry peeps...she is married. In 1998, she married Jon Stephen, a camera man.
Quote from TV.Com:
Louise: "Before I met Jon, I didn't really understand why people got married. I honestly believed I never would. It would have been so much more exotic to have been untraditional, and I just couldn't see myself being with one person for the rest of my life. But when I met Jon, I pretty much knew straightaway. But we met on set and that is a big no-no. You don't form relationships with people you're working with."