Dead Serious Suggestion: Style Boutique (Style Savvy in the US). Unless she totally loathes the idea of fashion, she might be into it. I'm assuming this is the same game Iceglow mentioned, but it is actually called 'Style Boutique' and not 'Fashion Boutique'. If you go looking for something with 'Fashion' in the title you might come out with one of those terrible 'Imagine' games.

Description from GameFAQs:
...you work in a boutique store and recommend suitable clothes and accessories to people who need them. You can have your own shop as the game progress, and you will get to manage the stock, including the mannequin for shop display. You will also get invited to events, and you need to dress up yourself
accordingly.
I've heard from a few adult females in the games industry who completely adore the game, but know that people will just ignore it because it looks like those terrible 'Imagine' games. This is a game being pushed out by Nintendo themselves, so that should at least give an impression of the quality.

For a puzzle game, Planet Puzzle League is my favourite. The Ace Attorney games were fun to play through too.

Professor Layton is a series. There are things in the first game that unlock in the second game, and so on. I'd say get the first one for now (unless you really want to get both) and see if she wants the next one after that, when it might be a little cheaper.