Sleeping well is probably the most important part of comfort, IMO. I highly recommend Exped DownMats; for the ultimate in comfort, the 9 Deluxe is stellar. Weighs almost 3 pounds, but it's one luxury I feel I need. Might help her quite a bit.
For those of us on the site, peeing and such in the woods isn't a second thought. For a girly girl trying to get into it, you might get her one of those Freshettes (female flow director)... Maybe try some of that No-Rinse shampoo. Shoot, the Sea to Summit pocket shower holds 10 liters and weighs about 4 ounces--you could even use it as a dirty water bag, maybe rig a gravity-feed filter.
Double-wall, "real" tent is usually perceived as more conventional, therefore at least psychologically more comfortable for her.
Every woman in my life has positively glowed about comfort when she crawled into one of my 800+ FP down bags. If you have an ultralight, 30ish degree bag for yourself, many women are concerned about getting cold. Maybe pick up a warmer 10-20 degree bag? Zipping together is good. Maybe get a UL down quilt.
A sample size deoderant stick might help her ease into it. Clothing wise, when I work with fashion-minded gals I stick with the layering concept. In other words, even though you only have one (maybe 2?) t-shirts/baselayer, you can layer different things over that in a combined stylistic and functional manner. If she chooses good "outfits," she won't need to bring too many clothes but stay happy. Maybe think aloud about how some feature of your jacket is awesome or stinks, try to get her thinking about how well her layers are working for her.
A few thoughts to get you started anyway. Cheers-