No need for condescending comments about your inept, helpless GF. Your patronizing, anti-feminist attitudes come through loud and clear... Maybe that's just how you talk though. I understand fully that you are a first-time user. One who doesn't really seem to grasp how these machines work, how they are sold, and how easy it is to actually go to a store and buy a camera, rather than fuss on-line and suck up time from others. Good luck navigating those mean streets with that nasty camera bogging you down.
This might help you:
How To Overcome The 'Analysis Paralysis' Of Decision-Making
I used to sell cameras. I know **exactly** the type of customer you are, and what your issues are in today's modern camera world. this article describes in just a few steps the actual actions you need to take in order to make a purchase, and to feel good about it.
1: Set a "drop dead" date
2: Get a sanity check
3: Curb your curiosity
4: Recognize that the moons will never align
5: Stair-step your decisions
I've seen literally hundreds of camera buyers, standing across the counter from ME, suffering from analysis paralysis, just as you are.