Dude. Calm down. - let me work my magic!
Firstly - I am assuming the games you downloaded and installed were digital downloads. So you have redeemed codes etc. Do not worry!
Now, on her Xbox, sign in as YOU.
Go to Settings.
Personalisation (on the left hand menu)
Then click on "My Home Xbox".
Then "Set this as my home Xbox".
Now you can SIGN OUT of YOUR gamer tag.
She will now be able to sign in as HERSELF and play all the games that you have accidentally associated with your own gamer tag without ever signing in as you!
Also - if YOU have Xbox live gold, she now has it by default because you have set her Xbox as YOUR "home Xbox".
Now on your own Xbox - sign in as her, set your Xbox as her "home Xbox" and now you can play any games associated with her account - and continue to use your Xbox live gold as normal.
There - done! Simple! You now both have access to both accounts games without having to log in to one another's account: ever!
Now go thank Microsoft for the best damn feature ever: "Family Share".
Also - I'm guessing you have an Xbox One S - it does not have a Kinect port like the original Xbox one. Microsoft have made this very clear! Simply go to Xbox.com and request a free adapter.
I hope this helps calm you down.
Now remember, if she buys a game digitally, you automatically have access to it on your own Xbox, and vice Versa. You also only need ONE gold account between you!
Happy now???
Woooo!
If anyone would like to massage my ego, subscribe to DeeKay86 on YouTube lol.
www.YouTube.com/DeeKay86
HAPPY NEW YEAR EVERYONE!!!!