That would have made a funny episode. When she first see's Surskit, she would freak out. Find out that it is a water pokemon, and totally fall in love, only to remember that it is also a bug pokemon. She would try to get close to it, but keeps getting scared from the bug part of it. Something would happen, and surskit would be the hero some how, and Misty would get over her fear of surskit. And just when you thinks she likes bug pokemon, a wurmple or a caterpie would wander by, causing her to run off screaming.
At least that's how I would see it.