I know absolutely nothing about wine, but TRObh will drink it occasionally. A while back on a "date night," she described what she liked to the bartender (basically, "sweet") and he recommended Barefoot Moscato. It turns out that she really likes it. With that in mind, are there some others you think she might like?
My wife, and most women wine drinkers that I know, are partial to Pinot Grigio. There are several good options out there for $10-12 per bottle.
Many women also like white zinfandel, which is referred to by some as "Koolaid wine" because of its sweetness.
My wife also likes peach wine and blackberry wine.