Finding her attractive is not what I find to be fkd up. What I find fkd up is you doing that kind of wondering when you've come here because you can't get her out of your mind. Wondering if you could pull her is hardly conducive to you banishing her from renting free space in your brain.
Have fun on your date, make a point of going out together alone at least once a month. Change thoughts of this other girl when they pop into your head instead of day dreaming about being good enough for her (or not). In other words, consciously change the subject of her to someone else, like your wife (or something else) and loop your thoughts on her instead.