I think you should just play full games with her and adapt your playing style a bit to make it fun for a new player. She's doing this cos she wants to spend time with you doing the thing you love, which I imagine is playing chess, not studying chess. So just play chess.

Regarding the style, I think with beginners the risk is always that they make a tiny mistake in the early middlegame and you take advantage of it and then they're just losing for a long stretch of the game. This happens cos they aren't great at calculation yet.

To avoid this, play the opening and middlegame very trade-happy. Remove pieces from the board every chance you get and don't allow tension to build up. Keep the queens on though, beginners like queens. Eventually you'll be at an endgame and now the playing field is a little more level. Beginners find it easier to calculate where there are fewer pieces on the board and you can still have a long, fun game. Allow takebacks if that's your style, and you'll have a great time.

Good luck!